3rd US Infantry Regiment (The Old Guard) - Lineage

Lineage

• Constituted 3 June 1784 in the Regular Army as the First American Regiment to consist of companies from Connecticut, New York, New Jersey, and Pennsylvania.

• Organized August–September 1784 in Pennsylvania and New Jersey (New York and Connecticut companies organized in 1785)

• Redesignated 29 September 1789 as the Regiment of Infantry

• Redesignated 3 March 1791 as the 1st Infantry Regiment

• Redesignated in 1792 as the Infantry of the 1st Sub-Legion

• Redesignated 31 October 1796 as the 1st Infantry Regiment

• Consolidated May–October 1815 with the 5th Infantry Regiment (constituted 12 April 1808), the 17th Infantry Regiment (constituted 11 January 1812), the 19th Infantry Regiment (constituted 26 June 1812), and the 28th Infantry Regiment (constituted 29 January 1813) to form the 3rd Infantry

• Consolidated August–December 1869 with one-half of the 37th Infantry Regiment (see ANNEX) and consolidated unit designated as the 3rd Infantry

• (2nd and 3rd Battalions inactivated 18 November 1921 at Fort Snelling, Minnesota; activated 8 June 1922 at Fort Snelling, Minnesota)

• Assigned 24 March 1923 to the 7th Division

• Relieved 15 August 1927 from assignment to the 7th Division and assigned to the 6th Division

• Relieved 1 October 1933 from assignment to the 6th Division and assigned to the 7th Division

• Relieved 16 October 1939 from assignment to the 7th Division and assigned to the 6th Division

• Relieved 10 May 1941 from assignment to the 6th Division

• (1st Battalion inactivated 1 June 1941 at Fort Leonard Wood, Missouri; activated 14 February 1942 in Newfoundland)

• (2nd Battalion (less Headquarters and Headquarters Company) inactivated 1 September 1942 at Fort Snelling, Minnesota (Headquarters and Headquarters Company concurrently inactivated in Greenland); battalion activated 22 October 1943 at Camp Butner, North Carolina)

• Inactivated 20 November 1946 in Germany

• Regiment (less 2nd Battalion) activated 6 April 1948 at Fort Myer, Virginia (2nd Battalion concurrently activated at Fort Lesley J. McNair, Washington, D.C.)

• Reorganized 1 July 1957 as a parent regiment under the Combat Arms Regimental System

• Withdrawn 16 January 1986 from the Combat Arms Regimental System and reorganized under the United States Army Regimental System

ANNEX

• Constituted 3 May 1861 in the Regular Army as the 3rd Battalion, 19th Infantry Regiment.

• Organized May 1865 – September 1866 at Fort Wayne, Michigan; Newport Barracks, Kentucky; and Fort Columbus, New York

• Reorganized and redesignated 23 November 1866 as the 37th Infantry Regiment.

• One-half of the 37th Infantry consolidated August–December 1869 with the 3rd Infantry and consolidated unit designated as the 3rd Infantry (remaining half of the 37th Infantry consolidated in June 1869 with the 5th Infantry and consolidated unit designated as the 5th Infantry—hereafter separate lineage)