Army units
Regiments
715 regiments in our catalog, 15 with full history pages. Each has a free search that fills in the name for you.
715 shown
- 100th United States Colored Infantry RegimentMilitary unit
- 101st Aviation RegimentAviation Regiment of the US Army 101st Airborne Division · from 1987
- 101st Cavalry RegimentMilitary unit · from 1920
- 101st Field Artillery RegimentMilitary unit · from 1636
- 101st Infantry Regiment (United States)Military unit · from 1861
- 101st United States Colored Infantry RegimentMilitary unit
- 102nd Cavalry RegimentUS cavalry regiment · from 1913
- 102nd Field Artillery RegimentMilitary unit · from 1786
- 102nd Infantry Regiment (United States)Military unit · from 1917
- 102nd United States Colored Infantry RegimentMilitary unit · from 1863
- 103rd Armor RegimentMilitary unit · from 1941
- 103rd Cavalry RegimentMilitary unit · from 1921
- 103rd Field Artillery RegimentMilitary unit · from 1917
- 103rd Infantry Regiment (United States)Military unit
- 104th Aviation Regiment (United States)Military unit
- 104th Cavalry RegimentMilitary unit · from 1921
- 104th Infantry Regiment (United States)United States Army unit · from 1639
- 105th Cavalry RegimentMilitary unit
- 105th Infantry Regiment (United States)Military unit
- 106th Aviation RegimentMilitary unit
- 106th Cavalry RegimentMilitary unit · from 2006
- 106th Infantry Regiment (United States)Military unit
- 106th United States Colored Infantry RegimentUnion Army infantry regiment · from 1864
- 107th Aviation Regiment (United States)
- 107th Cavalry RegimentMilitary unit · from 1877
- 107th Engineer BattalionMilitary unit
- 107th Field Artillery Regiment (United States)Military unit
- 107th Infantry Regiment (United States)Military unit · from 1917
- 108th Aviation RegimentMilitary unit
- 108th Cavalry RegimentMilitary unit · from 1921
- 108th Infantry Regiment (United States)Military unit · from 1898
- 108th United States Colored Infantry RegimentMilitary unit
- 109th Cavalry RegimentUS military unit
- 109th Field Artillery RegimentMilitary unit
- 109th Infantry Regiment (United States)Military unit · from 1877
- 109th United States Colored Infantry RegimentMilitary unit
- 10th Aviation RegimentMilitary unit · from 1988
- 10th Cavalry Regiment (United States)Military unit · from 1866
- 10th Field Artillery RegimentMilitary unit · from 1916
- 10th Infantry Regiment (United States)Military unit · from 1855
- 10th Maryland Volunteer Infantry RegimentMilitary unit
- 10th United States Colored Heavy Artillery RegimentMilitary unit · from 1862
- 10th United States Colored Infantry RegimentMilitary unit
- 110th Aviation BrigadeMilitary unit · from 1965
- 110th Cavalry Regiment (United States, 1921–1940)Military unit · from 1988
- 110th Cavalry Regiment (United States, 1988–1996)Military unit
- 110th Infantry Regiment (United States)Military unit · from 1873
- 110th United States Colored Infantry RegimentMilitary unit · from 1863
- 111th Armored Cavalry RegimentMilitary unit
- 111th Aviation Regiment (United States)Military unit · from 1987
- 111th Cavalry RegimentMilitary unit · from 1921
- 111th Field Artillery RegimentMilitary unit · from 1809
- 111th Infantry Regiment (United States)Military unit · from 1747
- 111th United States Colored Infantry RegimentMilitary unit · from 1864
- 112th Aviation RegimentMilitary unit
- 112th Cavalry RegimentMilitary unit · from 1918
- 112th Field Artillery RegimentMilitary unit · from 1917
- 112th Infantry Regiment (United States)Military unit · from 1878
- 112th United States Colored Infantry RegimentMilitary unit · from 1864
- 113th Cavalry RegimentMilitary unit · from 1921
- 113th Field Artillery RegimentMilitary unit · from 1917
- 113th Infantry Regiment (United States)Military unit · from 1775
- 113th United States Colored Infantry RegimentMilitary unit · from 1864
- 114th Aviation RegimentMilitary unit
- 114th Field Artillery RegimentField artillery regiment of the Mississippi Army National Guard
- 114th Infantry Regiment (United States)Military unit · from 1869
- 114th United States Colored Infantry RegimentMilitary unit
- 115th Infantry Regiment (United States)Military unit · from 1881
- 115th United States Colored Infantry RegimentMilitary unit
- 116th Cavalry Brigade Combat TeamMilitary unit · from 1920
- 116th Field Artillery RegimentFlorida army national guard unit · from 1899
- 116th Infantry Regiment (United States)Regiment of the Virginia Army National Guard · from 1741
- 116th United States Colored Infantry RegimentUnion Army regiment (Est. 1864)
- 117th Field Artillery RegimentMilitary unit
- 118th Field Artillery RegimentMilitary unit
- 118th Infantry Regiment (United States)Military unit · from 1846
- 118th United States Colored Infantry RegimentMilitary unit
- 119th Field Artillery RegimentAmerican Field Artillery Regiment
- 119th Infantry Regiment (United States)Military unit · from 1917
- 11th Armored Cavalry RegimentHistory pageMilitary unit · from 1901
- 11th Field Artillery RegimentMilitary unit · from 1916
- 11th Indiana Cavalry RegimentUS unit of the American Civil War (1863–65)
- 11th Infantry Regiment (United States)Military unit
- 11th United States Colored Infantry Regiment (New)Military unit · from 1863
- 11th United States Colored Infantry Regiment (Old)Military unit · from 1863
- 120th Field Artillery RegimentMilitary unit
- 120th Infantry Regiment (United States)Military unit · from 1917
- 121st Engineer Battalion (United States)American military unit · from 1918
- 121st Field Artillery Regiment (United States)Military unit · from 1885
- 121st Indiana Infantry Regiment"Military unit", "Indiana", "Cavalry", "American Civil War", "Eli Lilly"
- 121st Infantry Regiment (United States)Military unit
- 122nd Cavalry RegimentMilitary unit
- 122nd Field Artillery RegimentMilitary unit
- 122nd Infantry Regiment (United States)Military unit · from 1857
- 122nd United States Colored Infantry RegimentMilitary unit
- 123rd Aviation Regiment
- 123rd Field Artillery RegimentMilitary unit
- 123rd Infantry Regiment (United States)Military unit · from 1917
- 124th Cavalry RegimentMilitary unit
- 124th Infantry Regiment (United States)Military unit · from 1884
- 125th Field Artillery RegimentMilitary unit
- 125th Infantry Regiment (United States)Military unit · from 1857
- 125th United States Colored Infantry RegimentMilitary unit
- 126th Aviation RegimentMilitary unit · from 1987
- 126th Field Artillery RegimentMilitary unit · from 1880
- 126th Infantry Regiment (United States)Military unit
- 127th Field Artillery RegimentMilitary unit
- 127th Infantry Regiment (United States)Military unit · from 1884
- 127th United States Colored Infantry RegimentMilitary unit
- 128th Field Artillery RegimentMilitary unit history · from 1917
- 128th Infantry Regiment (United States)Military unit · from 1861
- 128th United States Colored Infantry RegimentMilitary unit
- 129th Infantry Regiment (United States)Military unit
- 12th Cavalry Regiment (United States)Military unit · from 1901
- 12th Field Artillery RegimentUS military unit · from 1916
- 12th Infantry Regiment (United States)Military unit · from 1861
- 12th Maryland Volunteer Infantry RegimentMilitary unit
- 12th United States Colored Heavy Artillery RegimentMilitary unit · from 1864
- 12th United States Colored Infantry RegimentMilitary unit
- 130th Aviation RegimentMilitary unit
- 130th Infantry Regiment (United States)Military unit · from 1809
- 131st Aviation RegimentMilitary unit · from 1987
- 131st Cavalry RegimentMilitary unit
- 131st Infantry Regiment (United States)Military unit · from 1874
- 132nd Infantry Regiment (United States)Infantry regiment of the United States Army
- 133rd Engineer BattalionU.S. military unit · from 1803
- 133rd Field Artillery RegimentMilitary unit · from 1899
- 133rd Infantry Regiment (United States)Military unit
- 134th Cavalry RegimentMilitary unit · from 1855
- 135th Aviation RegimentMilitary unit · from 1987
- 135th Infantry Regiment (United States)Military unit · from 1861
- 135th United States Colored Infantry RegimentMilitary unit
- 136th Infantry Regiment (United States)Military unit · from 1861
- 136th United States Colored Infantry RegimentMilitary unit
- 137th Aviation RegimentMilitary unit · from 1987
- 137th Infantry Regiment (United States)Military unit
- 137th United States Colored Infantry RegimentMilitary unit
- 138th Infantry Regiment (United States)Military unit · from 1832
- 138th United States Colored Infantry RegimentMilitary unit
- 139th Infantry Regiment (United States)Military unit
- 13th Aviation RegimentMilitary unit
- 13th Cavalry Regiment (United States)Military unit · from 1901
- 13th Field Artillery RegimentUS military unit · from 1916
- 13th Infantry Regiment (United States)Military unit · from 1798
- 13th United States Colored Heavy Artillery RegimentMilitary unit
- 13th United States Colored Infantry RegimentMilitary unit
- 140th Aviation RegimentMilitary unit
- 140th Infantry Regiment (United States)Military unit · from 1898
- 141st Field Artillery RegimentUnited States Army unit · from 1838
- 141st Infantry Regiment (United States)Military unit · from 1880
- 142nd Aviation RegimentMilitary unit
- 142nd Field Artillery RegimentMilitary unit
- 142nd Infantry Regiment (United States)Military unit · from 1917
- 143rd Field Artillery RegimentMilitary unit · from 1912
- 143rd Infantry Regiment (United States)Military unit · from 1917
- 144th Infantry Regiment (United States)Military unit
- 145th Armored RegimentMilitary unit · from 2007
- 145th Aviation RegimentMilitary unit
- 145th Field Artillery RegimentRegiment of the United States Army
- 146th Field Artillery RegimentUS military unit · from 1886
- 146th Infantry Regiment (United States)Military unit
- 147th Aviation RegimentMilitary unit
- 147th Field Artillery RegimentMilitary unit · from 1884
- 147th Regiment (United States)Military unit · from 1862
- 148th Field Artillery RegimentMilitary unit · from 1877
- 148th Infantry Regiment (United States)Military unit · from 1917
- 149th Armored RegimentHistory pageArmored unit of the United States Army · from 1959
- 149th Aviation RegimentMilitary unit
- 149th Infantry Regiment (United States)Military unit
- 14th Cavalry Regiment (United States)Military unit · from 1901
- 14th Field Artillery RegimentMilitary unit · from 1917
- 14th Infantry Regiment (United States)Military unit · from 1861
- 14th Pennsylvania Cavalry Regiment14th Pennsylvania Cavalry in the American Civil War 1862–1865
- 14th Regiment Heavy Artillery U.S. Colored TroopsMilitary unit
- 14th United States Colored Infantry RegimentMilitary unit
- 150th Aviation Regiment (United States)Military unit
- 150th Cavalry RegimentMilitary unit · from 1778
- 150th Field Artillery RegimentMilitary unit
- 151st Aviation RegimentMilitary unit
- 151st Cavalry RegimentUnited States Army cavalry regiment from 1947 to 2015 · from 1947
- 151st Field Artillery RegimentMinnesota army national guard unit
- 151st Infantry Regiment (United States)Military unit · from 1817
- 152nd Cavalry RegimentMilitary unit
- 153rd Cavalry RegimentMilitary unit · from 1884
- 153rd Infantry Regiment (United States)Infantry regiment of the United States Army · from 1890
- 153rd Pennsylvania Infantry RegimentMilitary unit
- 154th Pennsylvania Infantry RegimentMilitary unit
- 154th Regiment (United States)Military unit · from 1917
- 155th Infantry Regiment (United States)Military unit · from 1799
- 156th Infantry Regiment (United States)Military unit
- 157th Field Artillery RegimentMilitary unit · from 1917
- 158th Aviation RegimentMilitary unit
- 158th Cavalry RegimentMilitary unit
- 158th Field Artillery RegimentUS national guard unit · from 1920
- 158th Infantry Regiment (United States)History pageMilitary unit · from 1941
- 158th Pennsylvania Infantry RegimentMilitary unit
- 159th Aviation Regiment (United States)Military unit
- 159th Infantry Regiment (United States)Military unit
- 15th Cavalry Regiment (United States)Military unit · from 1901
- 15th Field Artillery Regiment (United States)Military unit · from 1917
- 15th Infantry Regiment (United States)Military unit · from 1861
- 15th United States Colored Infantry RegimentMilitary unit
- 160th Infantry Regiment (United States)Infantry regiment of the United States Army · from 1898
- 160th Special Operations Aviation Regiment (Airborne)U.S. Army helicopter unit · from 1981
- 161st Infantry Regiment (United States)Military unit · from 1886
- 162nd Infantry Regiment (United States)Military unit · from 1917
- 163rd Infantry Regiment (United States)Military unit · from 1884
- 164th Regiment (United States)Military unit · from 1917
- 165th Pennsylvania Infantry RegimentMilitary unit
- 166th Infantry Regiment (United States)Military unit · from 1917
- 166th Pennsylvania Infantry RegimentMilitary unit
- 167th Infantry Regiment (United States)Military unit · from 1836
- 168th Aviation RegimentMilitary unit · from 1987
- 168th Infantry Regiment (United States)Military unit · from 1861
- 169th Aviation RegimentMilitary unit
- 169th Infantry Regiment (United States)Military unit · from 1672
- 169th Pennsylvania Infantry RegimentMilitary unit
- 16th Cavalry Regiment (United States)Military unit · from 1916
- 16th Field Artillery RegimentUS military unit · from 1916
- 16th Infantry Regiment (United States)Military unit · from 1861
- 16th United States Colored Infantry RegimentMilitary unit
- 171st Aviation RegimentMilitary unit
- 172nd Cavalry RegimentMilitary unit
- 172nd Infantry Regiment (United States, 1982–present)Military unit · from 1982
- 173rd Pennsylvania Infantry RegimentMilitary unit
- 174th Infantry Regiment (United States)American military unit · from 1861
- 174th Pennsylvania Infantry RegimentMilitary unit
- 175th Infantry Regiment (United States)Military unit · from 1774
- 175th Pennsylvania Infantry RegimentMilitary unit
- 176th Pennsylvania Infantry RegimentUnit in the American Civil War
- 178th Infantry Regiment (United States)Military unit
- 179th Infantry Regiment (United States)Military unit · from 1890
- 17th Cavalry Regiment (United States)Military unit · from 1916
- 17th Field Artillery RegimentMilitary unit · from 1916
- 17th Infantry Regiment (United States)Military unit · from 1861
- 17th Pennsylvania Cavalry RegimentAmerican Civil War Union Army cavalry regiment
- 17th Pennsylvania Infantry RegimentMilitary unit
- 17th United States Colored Infantry RegimentMilitary unit
- 180th Cavalry RegimentMilitary unit · from 2008
- 181st Infantry Regiment (United States)Military unit
- 182nd Infantry Regiment (United States)Oldest regiment of the United States Army · from 1636
- 183rd Aviation RegimentMilitary unit
- 183rd Cavalry RegimentMilitary unit · from 2006
- 184th Infantry Regiment (United States)Military unit · from 1924
- 185th Armor RegimentMilitary unit · from 1885
- 185th Aviation Regiment (United States)Military unit
- 185th Infantry Regiment (United States)Military unit · from 1885
- 186th Infantry Regiment (United States)Military unit · from 1921
- 186th Pennsylvania Infantry RegimentMilitary unit
- 187th Infantry Regiment (United States)Military unit · from 1942
- 188th Infantry Regiment (United States)Military unit
- 189th Aviation RegimentU.S. Army military unit
- 189th Regiment (United States)Military unit · from 1921
- 18th Cavalry Regiment (United States)Military unit · from 1885
- 18th Field Artillery RegimentUS military unit · from 1916
- 18th Infantry Regiment (United States)Military unit · from 1861
- 18th Pennsylvania Cavalry RegimentUnion Army unit in the American Civil War
- 18th United States Colored Infantry RegimentMilitary unit · from 1865
- 192nd New York Infantry RegimentMilitary unit
- 192nd Pennsylvania Infantry RegimentMilitary unit
- 193rd Glider Infantry RegimentMilitary unit
- 193rd New York Infantry RegimentMilitary unit
- 194th Armor RegimentMilitary unit · from 1959
- 194th Glider Infantry RegimentMilitary unit
- 194th New York Infantry RegimentMilitary unit
- 195th Infantry Regiment (United States)Military unit
- 196th Infantry Regiment (United States)Military unit · from 1884
- 197th Field Artillery RegimentMilitary unit · from 1922
- 198th Signal BattalionMilitary unit · from 1775
- 199th Infantry Regiment (United States)Military unit
- 19th Cavalry Regiment (United States)Military unit
- 19th Field Artillery RegimentUS military unit
- 19th Infantry Regiment (United States)History pageMilitary unit · from 1861
- 19th United States Colored Infantry RegimentMilitary unit
- 1st Air Defense Artillery RegimentMilitary unit
- 1st Aviation Regiment (United States)Military unit · from 1957
- 1st Cavalry Regiment (United States)Military unit · from 1833
- 1st Field Artillery Regiment (United States)US military unit · from 1907
- 1st Filipino Infantry RegimentFormer United States Army infantry regiment · 1942–1946
- 1st Infantry Regiment (United States)Military unit · from 1791
- 1st Medical BrigadeMedical brigade of the III Armored Corps, US Army · from 1917
- 1st United States Colored Cavalry RegimentMilitary unit
- 1st United States Colored Heavy Artillery RegimentMilitary unit
- 1st United States Colored Infantry RegimentCivil War era military unit · from 1863
- 200th Infantry Regiment (United States)Military unit · from 1880
- 201st Field Artillery RegimentMilitary unit · from 1735
- 202nd Air Defense Artillery RegimentMilitary unit · from 1924
- 205th Infantry Regiment (United States)Former United States infantry unit
- 206th Field Artillery RegimentMilitary unit
- 207th Aviation RegimentMilitary unit
- 20th Field Artillery Regiment (United States)Military unit · from 1916
- 20th Infantry Regiment (United States)Military unit · from 1862
- 20th Pennsylvania Infantry RegimentUnion Army volunteer infantry regiment · from 1861
- 20th United States Colored Infantry RegimentAmerican Civil War military unit
- 210th Aviation RegimentMilitary unit
- 211th Aviation RegimentMilitary unit
- 211th Infantry Regiment (United States)Military unit
- 213th Air Defense Artillery RegimentMilitary unit · from 1921
- 214th Aviation RegimentMilitary unit
- 214th Field Artillery RegimentMilitary unit · from 1939
- 218th Field Artillery RegimentMilitary unit
- 218th Infantry RegimentAmerican military unit
- 21st Field Artillery RegimentUS military unit
- 21st Infantry Regiment (United States)Military unit · from 1861
- 21st New York Cavalry RegimentCavalry regiment in the American Civil War · from 1863
- 21st United States Colored Infantry Regiment
- 221st Cavalry RegimentMilitary unit
- 222nd Aviation RegimentMilitary unit
- 222nd Infantry RegimentMilitary unit
- 223rd Infantry RegimentMilitary unit
- 224th Aviation RegimentMilitary unit
- 224th Infantry RegimentMilitary unit · from 1946
- 227th Aviation RegimentMilitary unit
- 228th Aviation RegimentMilitary unit
- 228th Infantry RegimentMilitary unit
- 229th Aviation RegimentMilitary unit
- 22nd Field Artillery RegimentMilitary unit · from 1918
- 22nd Infantry Regiment (United States)Military unit · from 1812
- 22nd United States Colored Infantry RegimentUnion Army infantry regiment
- 232nd Infantry RegimentMilitary unit
- 237th Cavalry RegimentMilitary unit
- 238th Aviation Regiment (United States)Military unit
- 238th Cavalry RegimentMilitary unit
- 23rd Field Artillery Regiment (United States)Inactive US army unit · from 1921
- 23rd Infantry Regiment (United States)Military unit · from 1861
- 23rd United States Colored Infantry RegimentMilitary unit
- 240th Cavalry RegimentMilitary unit
- 242nd Infantry RegimentUnit of the United States Army
- 244th Air Defense Artillery RegimentMilitary unit
- 244th Aviation RegimentMilitary unit
- 245th Aviation RegimentMilitary unit
- 24th Field Artillery Regiment (United States)Philippine Scouts unit in 1922-1942 · from 1922
- 24th Infantry RegimentMilitary unit · 1869–1951
- 24th New Jersey Volunteer Infantry RegimentMilitary unit
- 24th United States Colored Infantry RegimentUnion Army infantry regiment
- 251st Air Defense Artillery RegimentMilitary unit · from 1924
- 252nd Armor RegimentRegiment of the North Carolina Army National Guard · from 1959
- 258th Field Artillery RegimentMilitary unit · from 1809
- 25th Aviation RegimentMilitary unit · from 1957
- 25th Field Artillery RegimentHistory pageUS military unit · from 1918
- 25th Infantry Regiment (United States)Racially-segregated infantry unit of the U.S. Army (1866–1957) · 1866–1946
- 25th United States Colored Infantry RegimentUnion Army infantry regiment
- 2677th Office of Strategic Services RegimentMilitary unit · from 1944
- 26th Cavalry Regiment (Philippine Scouts)Military unit · from 1988
- 26th Field Artillery Regiment (United States)US military unit · from 1918
- 26th Infantry Regiment (United States)Military unit · from 1901
- 26th United States Colored Infantry RegimentMilitary unit · 1864–1865
- 276th Engineer Battalion (United States)Military unit · from 1963
- 278th Armored Cavalry RegimentMilitary unit · from 1887
- 279th Infantry RegimentMilitary unit · from 1946
- 27th Cavalry Regiment (United States)Military unit · from 1943
- 27th Field Artillery RegimentUS military unit · from 1918
- 27th Infantry Regiment (United States)Military unit · from 1901
- 27th United States Colored Infantry RegimentMilitary unit
- 285th Aviation RegimentMilitary unit
- 289th Infantry RegimentMilitary unit
- 28th Cavalry Regiment (United States)1943 US Army Cavalry Regiment · from 1943
- 28th Field Artillery RegimentUS military unit · from 1918
- 28th Infantry Regiment (United States)Military unit · from 1901
- 28th United States Colored Infantry RegimentMilitary unit · from 1864
- 291st Infantry RegimentMilitary unit
- 295th Infantry RegimentLight infantry regiment of the Puerto Rico Army National Guard
- 296th Infantry RegimentInfantry regiment of the Puerto Rico Army National Guard
- 297th Infantry RegimentMilitary unit
- 299th Cavalry RegimentMilitary unit · from 1923
- 29th Cavalry Regiment (United States)Military unit
- 29th Field Artillery RegimentMilitary unit · from 1918
- 29th Infantry Regiment (United States)Military unit · from 1901
- 29th United States Colored Infantry RegimentMilitary unit · from 1864
- 2nd Air Defense Artillery RegimentMilitary unit
- 2nd Aviation Regiment (United States)Military unit · from 1957
- 2nd Cavalry Regiment (United States)Cavalry regiment of the United States Army · from 1836
- 2nd Field Artillery Regiment (United States)Military unit · from 1907
- 2nd Filipino Infantry RegimentMilitary unit · from 1942
- 2nd Infantry Regiment (United States)Military unit · from 1808
- 2nd Kansas Cavalry RegimentMilitary unit · from 1861
- 2nd Massachusetts Cavalry RegimentMilitary unit
- 2nd Massachusetts Infantry RegimentMilitary unit · from 1861
- 2nd United States Colored Cavalry RegimentMilitary unit · from 1863
- 2nd United States Colored Infantry RegimentMilitary unit
- 2nd United States Colored Light Artillery RegimentU.S. military unit
- 300th Armored Cavalry RegimentMilitary unit
- 300th Field Artillery RegimentField artillery regiment of the US Army · from 1880
- 301st Armored Cavalry RegimentMilitary unit
- 301st Cavalry RegimentMilitary unit
- 302nd Armored Cavalry RegimentMilitary unit
- 302nd Cavalry RegimentCavalry unit of the United States Army
- 303rd Armored Cavalry RegimentMilitary unit · from 1917
- 303rd Cavalry Regiment
- 304th Armored Cavalry RegimentMilitary unit
- 304th Cavalry RegimentMilitary unit
- 304th Infantry RegimentMilitary unit · from 1917
- 305th Armored Cavalry RegimentMilitary unit
- 305th Cavalry RegimentMilitary unit
- 305th Infantry RegimentMilitary unit
- 306th Armored Cavalry RegimentMilitary unit
- 306th Infantry RegimentMilitary unit
- 307th Cavalry RegimentMilitary unit
- 307th Infantry RegimentMilitary unit · from 1917
- 308th Armored Cavalry RegimentMilitary unit
- 308th Cavalry RegimentMilitary unit · from 1917
- 308th Infantry RegimentUS infantry regiment during the First World War
- 309th Armored Cavalry RegimentMilitary unit
- 309th Cavalry RegimentArmy cavalry unit from 1918 to 1942
- 30th Field Artillery Regiment (United States)Military unit · from 1918
- 30th Infantry Regiment (United States)Military unit · from 1901
- 30th United States Colored Infantry RegimentMilitary unit
- 310th Armored Cavalry RegimentMilitary unit
- 310th Cavalry RegimentMilitary unit
- 310th Infantry RegimentMilitary unit
- 311th Armored Cavalry RegimentMilitary unit
- 311th Cavalry RegimentUS Army unit
- 312th Cavalry RegimentMilitary unit
- 313th Cavalry RegimentMilitary unit
- 314th Armored Cavalry RegimentMilitary unit
- 314th Cavalry RegimentMilitary unit
- 314th Infantry RegimentMilitary unit · from 1917
- 315th Cavalry RegimentMilitary unit
- 316th Cavalry RegimentMilitary unit
- 317th Armored Cavalry RegimentMilitary unit
- 317th Cavalry RegimentMilitary unit
- 317th Infantry RegimentArmy military unit
- 318th Cavalry RegimentFormer unit of the US Army
- 319th Cavalry RegimentMilitary unit
- 319th Field Artillery RegimentMilitary unit · from 1917
- 31st Cavalry Regiment (United States)Military unit · from 1821
- 31st Field Artillery RegimentUS military unit · from 1918
- 31st Infantry Regiment (United States)Military unit · from 1916
- 31st New Jersey Infantry RegimentMilitary unit
- 31st United States Colored Infantry RegimentInfantry regiment raised in New York, USA · from 1864
- 320th Armored Cavalry RegimentMilitary unit
- 320th Cavalry RegimentMilitary unit
- 320th Field Artillery RegimentUS military unit · from 1917
- 321st Armored Cavalry RegimentMilitary unit
- 321st Cavalry RegimentMilitary unit
- 321st Field Artillery RegimentUS military unit · from 1917
- 322nd Cavalry RegimentMilitary unit · from 1921
- 323rd Cavalry RegimentMilitary unit · from 1921
- 324th Cavalry RegimentMilitary unit
- 324th Infantry RegimentMilitary unit
- 325th Infantry RegimentUS Army unit · from 1917
- 326th Infantry RegimentMilitary unit · from 1917
- 327th Infantry RegimentMilitary unit · from 1917
- 328th Infantry RegimentMilitary unit · 1917–1946
- 329th Infantry RegimentMilitary unit
- 32nd Cavalry Regiment (United States)Cavalry regiment of the United States Army · from 1941
- 32nd Field Artillery RegimentMilitary unit · from 1918
- 32nd Infantry Regiment (United States)Military unit · from 1916
- 32nd United States Colored Infantry RegimentUnion Army infantry regiment
- 332nd Engineer General Service Regimentfrom 1942
- 332nd Infantry RegimentMilitary unit · from 1917
- 333rd Field Artillery RegimentUS military unit · from 1917
- 335th Infantry RegimentU.S. Army infantry regiment · from 1917
- 337th Infantry Regiment (United States)Military unit · from 1917
- 338th Engineer General Service RegimentUS army regiment
- 338th Infantry RegimentMilitary unit
- 339th Infantry RegimentMilitary unit
- 33rd Armor RegimentMilitary unit · from 1941
- 33rd Field Artillery RegimentUS military unit · from 1918
- 33rd Infantry Regiment (United States)Military unit · from 1916
- 33rd United States Colored Infantry Regiment
- 340th Infantry RegimentMilitary unit
- 341st Engineer General Service RegimentMilitary unit
- 348th Cavalry RegimentMilitary unit
- 349th Infantry RegimentMilitary unit
- 34th Armor RegimentMilitary unit · from 1941
- 34th Field Artillery RegimentUS military unit · from 1918
- 34th Infantry Regiment (United States)Military unit · from 1916
- 34th United States Colored Infantry Regiment
- 351st Infantry RegimentMilitary unit
- 355th Infantry RegimentMilitary unit
- 358th Infantry RegimentMilitary unit
- 359th Infantry RegimentUnit of the United States Army
- 35th Armor RegimentMilitary unit · from 1941
- 35th Field Artillery RegimentUS military unit
- 35th Infantry Regiment (United States)Military unit · from 1916
- 35th United States Colored Infantry RegimentMilitary unit
- 366th Infantry Regiment (United States)Segregated African American regiment · from 1917
- 368th Infantry RegimentInfantry regiment of the USA
- 369th Infantry Regiment (United States)United States Army African-American regiment · 1913–1945
- 36th Field Artillery RegimentUS military unit · from 1918
- 36th Infantry Regiment (United States)Military unit
- 36th United States Colored Infantry RegimentMilitary unit
- 370th Infantry RegimentMilitary unit
- 371st Infantry RegimentUnited States Army unit · 1917–1945
- 372nd Infantry RegimentMilitary unit · 1918–1946
- 376th Aviation RegimentMilitary unit
- 377th Field Artillery RegimentMilitary unit · from 1921
- 378th Infantry RegimentUnit of the United States Army
- 379th Infantry RegimentUnit of the US Army
- 37th Armor RegimentMilitary unit · from 1941
- 37th Field Artillery RegimentUS military unit · from 1918
- 37th Infantry Regiment (United States)Military unit
- 37th United States Colored Infantry RegimentMilitary unit
- 382nd Infantry RegimentMilitary unit
- 385th Infantry RegimentMilitary unit
- 38th Cavalry RegimentMilitary unit
- 38th Field Artillery RegimentUS military unit · from 1918
- 38th Infantry Regiment (United States)Military unit · from 1917
- 38th New Jersey Volunteer Infantry RegimentMilitary unit
- 38th United States Colored Infantry RegimentMilitary unit
- 393rd Infantry RegimentMilitary unit · from 1918
- 394th Infantry RegimentMilitary unit · from 1918
- 395th Infantry RegimentMilitary unit · from 1918
- 39th Field Artillery RegimentUS military unit · from 1918
- 39th Infantry Regiment (United States)Military unit · from 1917
- 39th Infantry Regiment (War of 1812)East Tennesseans in Creek War · from 1813
- 39th United States Colored Infantry RegimentMilitary unit
- 3rd Air Defense Artillery RegimentMilitary unit · from 1971
- 3rd Aviation Regiment (United States)Military unit · from 1987
- 3rd Battalion, 33rd Armored Regiment (United States)Military unit · from 1941
- 3rd Cavalry Regiment (United States)History pageArmored cavalry regiment of the III Armored Corps, US Army · from 1846
- 3rd Field Artillery Regiment (United States)Military unit · from 1907
- 3rd Infantry Regiment (United States)History pageUnited States Army combat formation · from 1784
- 3rd United States Colored Cavalry RegimentMilitary unit
- 3rd United States Colored Heavy Artillery RegimentMilitary unit, American Civil War
- 3rd United States Colored Infantry RegimentMilitary unit
- 40th Cavalry RegimentMilitary unit · from 1941
- 40th Field Artillery RegimentUS military unit · from 1918
- 40th Infantry Regiment (United States)Military unit
- 40th United States Colored Infantry RegimentMilitary unit
- 413th Regiment (United States)Military unit · from 1921
- 414th Infantry RegimentMilitary unit · from 1921
- 415th Infantry RegimentMilitary unit · from 1921
- 41st Field Artillery RegimentMilitary unit · from 1918
- 41st Infantry Regiment (United States)Military unit
- 41st United States Colored Infantry RegimentUnion Army African American infantry regiment · from 1864
- 42nd Field Artillery RegimentUS military unit · from 1918
- 42nd Infantry Regiment (United States)Military unit
- 42nd United States Colored Infantry RegimentMilitary unit
- 43rd Air Defense Artillery RegimentMilitary unit · from 1918
- 43rd Infantry Regiment (United States)Military unit · from 1917
- 43rd United States Colored Infantry RegimentUnion Army African American infantry regiment
- 442nd Infantry RegimentHistory pageInfantry regiment of the United States Army · 1944–1946
- 44th Air Defense Artillery RegimentMilitary unit · from 1918
- 44th Infantry Regiment (United States)Military unit · from 1813
- 44th United States Colored Infantry RegimentMilitary unit
- 45th Infantry Regiment (United States)Military unit
- 45th United States Colored Infantry RegimentMilitary unit
- 46th Infantry Regiment (United States)Military unit · from 1917
- 46th United States Colored Infantry RegimentMilitary unit · from 1863
- 473rd Infantry RegimentMilitary unit
- 47th Infantry Regiment (United States)Infantry regiment of the United States Army · from 1917
- 47th United States Colored Infantry RegimentMilitary unit
- 48th Infantry Regiment (United States)Military unit
- 48th United States Colored Infantry RegimentMilitary unit
- 49th Infantry Regiment (United States)Military unit · from 1917
- 4th Air Defense Artillery RegimentMilitary unit · from 1971
- 4th Aviation Regiment (United States)Military unit · from 1987
- 4th Cavalry Regiment (United States)Military unit · from 1855
- 4th Field Artillery RegimentMilitary unit · from 1907
- 4th Infantry Regiment (United States)Military unit · from 1781
- 4th United States Colored Cavalry RegimentMilitary unit
- 4th United States Colored Infantry RegimentMilitary unit on the Union side during the American Civil War · from 1863
- 501st Aviation RegimentMilitary unit
- 501st Infantry RegimentHistory pageMilitary unit · from 1942
- 502nd Infantry RegimentHistory pageInfantry regiment of the United States Army · from 1942
- 503rd Infantry RegimentAirborne infantry regiment of the United States Army · from 1941
- 504th Infantry RegimentMilitary unit of the United States Army · from 1942
- 505th Infantry RegimentAirborne unit of the United States Army · from 1942
- 506th Infantry RegimentHistory pageMilitary unit · from 1942
- 507th Infantry RegimentMilitary unit · from 1942
- 508th Infantry RegimentMilitary unit · from 1942
- 509th Infantry RegimentMilitary unit · from 1942
- 50th Infantry Regiment (United States)Military unit
- 50th United States Colored Infantry RegimentMilitary unit
- 511th Infantry RegimentMilitary unit
- 513th Parachute Infantry RegimentMilitary unit · 1942–1949
- 515th Parachute Infantry RegimentMilitary unit
- 517th Parachute Infantry RegimentMilitary unit · from 1943
- 517th Parachute Regimental Combat TeamParachute infantry regiment of the US Army · from 1943
- 518th Infantry RegimentMilitary unit
- 51st Coast Artillery RegimentMilitary unit · from 1917
- 51st Infantry Regiment (United States)Military unit
- 51st United States Colored Infantry RegimentMilitary unit
- 52nd Air Defense Artillery RegimentMilitary unit · from 1917
- 52nd Aviation Regiment (United States)Military unit · from 1940
- 52nd Infantry Regiment (United States)Military unit
- 52nd United States Colored Infantry RegimentMilitary unit
- 532nd Engineer Boat and Shore RegimentUnited States Army engineer unit in World War II · from 1943
- 53rd Coast Artillery RegimentInactive US army unit
- 53rd Infantry Regiment (United States)Military unit · from 1917
- 53rd United States Colored Infantry RegimentMilitary unit
- 541st Parachute Infantry RegimentMilitary unit
- 542nd Parachute Infantry RegimentMilitary unit
- 54th Infantry Regiment (United States)Military unit · from 1917
- 54th Massachusetts Infantry RegimentHistory pageAfrican-American Union Army unit of the Civil War (1863–65) · 1863–1865
- 54th United States Colored Infantry RegimentMilitary unit · from 1863
- 55th Air Defense Artillery RegimentMilitary unit · from 1917
- 55th Infantry Regiment (United States)Military unit · from 1917
- 55th United States Colored Infantry RegimentUnion Army infantry regiment
- 562nd Air Defense Artillery RegimentAir defense regiment of the United States Army
- 56th Air Defense Artillery RegimentMilitary unit · from 1971
- 56th Infantry Regiment (United States)Military unit · from 1917
- 56th United States Colored Infantry RegimentMilitary unit · from 1863
- 57th Infantry Regiment (United States)Military unit · from 1917
- 57th United States Colored Infantry RegimentMilitary unit · from 1863
- 58th Infantry Regiment (United States)Military unit · from 1917
- 58th United States Colored Infantry RegimentMilitary unit
- 594th Engineer Boat and Shore RegimentMilitary unit · from 1943
- 59th Air Defense Artillery RegimentMilitary unit · from 1917
- 59th Infantry Regiment (United States)Military unit · from 1917
- 59th United States Colored Infantry RegimentAmerican Civil War infantry regiment
- 5th Air Defense Artillery RegimentMilitary unit · from 1971
- 5th Cavalry RegimentUnited States Army unit · from 1855
- 5th Field Artillery RegimentMilitary unit · from 1907
- 5th Infantry Regiment (United States)Military unit · from 1808
- 5th New York Cavalry Regiment5th New York Cavalry in the American Civil War 1861–1865
- 5th United States Colored Cavalry RegimentMilitary unit · from 1864
- 5th United States Colored Heavy Artillery RegimentUnion Army unit of the American Civil War · 1863–1866
- 5th United States Colored Infantry RegimentMilitary unit · from 1863
- 60th Air Defense Artillery RegimentMilitary unit · from 1917
- 60th Infantry Regiment (United States)Military unit · from 1917
- 60th United States Colored Infantry RegimentInfantry regiment in the American Civil War · from 1864
- 61st Air Defense Artillery RegimentMilitary unit · from 1917
- 61st Cavalry Regiment (United States)Military unit
- 61st Infantry Regiment (United States)Military unit
- 61st United States Colored Infantry RegimentMilitary unit
- 62nd Air Defense Artillery RegimentMilitary unit · from 1917
- 62nd Infantry Regiment (United States)Military unit
- 632nd Armor RegimentMilitary unit · from 1963
- 635th Armored RegimentMilitary unit · from 1953
- 63rd Armor RegimentMilitary unit · from 1942
- 63rd Infantry Regiment (United States)Military unit
- 63rd United States Colored Infantry RegimentMilitary unit
- 641st Aviation RegimentMilitary unit
- 64th Armor RegimentMilitary unit · from 1963
- 64th Infantry Regiment (United States)Military unit · from 1917
- 64th United States Colored Infantry RegimentMilitary unit
- 65th Air Defense Artillery RegimentMilitary unit · from 1917
- 65th Infantry Regiment (United States)History pagePuerto Rican regiment of the United States Army · 1920–1956
- 66th Armor RegimentMilitary unit · from 1918
- 66th Infantry Regiment (United States)Military unit
- 66th United States Colored Infantry RegimentMilitary unit
- 67th Armor RegimentMilitary unit · from 1929
- 67th Infantry Regiment (United States)Military unit
- 68th Armor RegimentMilitary unit · from 1933
- 69th Armor RegimentMilitary unit · from 1940
- 69th Infantry Regiment (United States)Military unit · from 1918
- 69th New York Infantry RegimentUnion Army unit in the American Civil War · from 1849
- 6th Air Defense Artillery RegimentMilitary unit
- 6th Cavalry RegimentMilitary unit · from 1861
- 6th Field Artillery RegimentMilitary unit of the United States · from 1907
- 6th Infantry Regiment (United States)Military unit · from 1812
- 6th Maryland Volunteer Infantry RegimentMilitary unit
- 6th New York Cavalry RegimentMilitary unit
- 6th United States Colored Cavalry RegimentMilitary unit
- 6th United States Colored Infantry RegimentAfrican American Union Army infantry regiment · from 1863
- 70th Armor RegimentUS Army military unit · from 1940
- 70th Infantry Regiment (United States)Military unit · from 1918
- 70th United States Colored Infantry RegimentMilitary unit
- 71st Air Defense Artillery RegimentMilitary unit · from 1918
- 71st Cavalry RegimentMilitary unit · from 1941
- 71st Infantry Regiment (United States)Military unit
- 71st New York Infantry RegimentMilitary unit · from 1850
- 71st United States Colored Infantry RegimentMilitary unit · from 1864
- 73rd Cavalry RegimentMilitary unit · from 1941
- 73rd Field Artillery RegimentMilitary unit · from 1918
- 748th Cavalry RegimentMilitary unit
- 74th Infantry Regiment (United States)Military unit · from 1918
- 75th Cavalry RegimentMilitary unit · from 1941
- 75th Field Artillery RegimentUS military unit · from 1918
- 75th Infantry Regiment (United States)Military unit · from 1918
- 75th Ranger RegimentHistory pageElite US Army light infantry unit · from 1984
- 76th Field Artillery RegimentMilitary unit · from 1916
- 77th Armor RegimentTank unit of the United States Army · from 1941
- 77th Field Artillery RegimentUS military unit · from 1916
- 77th United States Colored Infantry RegimentMilitary unit
- 78th Field Artillery RegimentArtillery regiment of the United States Army · from 1916
- 78th United States Colored Infantry RegimentMilitary unit
- 79th Field Artillery RegimentUS military unit · from 1916
- 7th Air Defense Artillery RegimentMilitary unit · from 1971
- 7th Cavalry RegimentHistory pageUnited States Army cavalry regiment · from 1866
- 7th Field Artillery RegimentMilitary unit · from 1916
- 7th Infantry Regiment (United States)Military unit · from 1812
- 7th United States Colored Infantry RegimentMilitary unit · from 1863
- 80th Field Artillery RegimentUS military unit
- 80th United States Colored Infantry Regiment19th century US army regiment
- 81st Armor RegimentMilitary unit · from 1941
- 81st Field Artillery RegimentMilitary unit · from 1917
- 82nd Aviation RegimentMilitary unit · from 1957
- 82nd Cavalry RegimentMilitary unit · from 1959
- 82nd Field Artillery RegimentMilitary unit · from 1917
- 82nd United States Colored Infantry RegimentMilitary unit
- 83rd Field Artillery RegimentMilitary unit · from 1917
- 84th Field Artillery RegimentMilitary unit · from 1917
- 85th Infantry Regiment (United States)Military unit
- 86th Field Artillery RegimentMilitary unit
- 86th Infantry Regiment (United States)Military unit
- 87th Infantry Regiment (United States)Military unit · from 1941
- 88th Infantry Regiment (United States)Military unit · from 1941
- 89th Cavalry RegimentMilitary unit
- 89th Infantry Regiment (United States)Military unit
- 8th Cavalry RegimentUnited States Army Cavalry Regiment · from 1866
- 8th Field Artillery RegimentMilitary unit · from 1916
- 8th Infantry Regiment (United States)Military unit · from 1838
- 8th Regiment Heavy Artillery U.S. Colored TroopsMilitary unit
- 8th United States Colored Infantry RegimentUnion Army infantry regiment · from 1863
- 90th Infantry Regiment (United States)Military unit
- 91st Cavalry RegimentMilitary unit · from 2006
- 92nd Field Artillery RegimentMilitary unit · from 1933
- 94th Cavalry RegimentMilitary unit
- 94th Field Artillery RegimentMilitary unit · from 1933
- 97th United States Colored Infantry RegimentMilitary unit
- 98th Cavalry RegimentMilitary unit · from 1959
- 99th United States Colored Infantry RegimentMilitary unit
- 9th Cavalry Regiment (United States)Military unit · from 1866
- 9th Field Artillery RegimentMilitary unit · from 1916
- 9th Infantry Regiment (United States)Military unit · from 1855
- 9th United States Colored Infantry RegimentMilitary unit on the Union side during the American Civil War
- Detroit Light GuardMilitary unit
- First American RegimentFirst U.S. armed forces, 1784–1815 · from 1784
- Kansas Army National GuardComponent of the U.S. Army and military of the state of Kansas
- Troop E, 256th CavalryMilitary unit
- United States Engineer Regiments in World War II
Names, descriptions and dates from Wikipedia and Wikidata. The list grows as our searches meet new regiments.