2nd Brigade Combat Team, 1st Infantry Division

The 2nd Brigade Combat Team, 1st Infantry Division, also known as the Dagger Brigade, is a maneuver brigade combat team in the U.S. 1st Infantry Division. The brigade is stationed in Fort Riley, Kansas.

The 2nd Brigade was first constituted on 24 May 1917 as Headquarters, 2nd Infantry Brigade of the 1st Expeditionary Division, which was later designated as the 1st Division. The brigade comprised the 26th Infantry and 28th Infantry regiments.

The 2nd Brigade deployed to France in December 1917 with the rest of the 1st Infantry Division as part of the American Expeditionary Force (AEF), as the American military was known in World War I. The brigade participated in many campaigns, including the Meuse-Argonne Offensive and the Battle of Saint-Mihiel.

The brigade redeployed at the end of World War I in August 1918.

At the start of World War II, the 2nd Brigade was stationed at Fort Ontario at Oswego, New York. When the United States Army reorganised from the square division to the triangular division each division lost one regiment, (the 28th Infantry) and the brigade structure. The brigade was relieved from assignment to the 1st Infantry Division on 16 October 1939, and moved to Pierrepont, New York as a Separate Infantry Brigade on 29 March 1940. The 2nd Infantry Brigade remained at Pierrepont, New York until 1 June 1940, when they returned to Fort Ontario; the 2nd Infantry Brigade was inactivated on the same day.

After the army's conversion to the triangular division, only two separate brigades were formed during World War II, the 1st Airborne Infantry Brigade and the 2nd Airborne Infantry Brigade both formed in 1943. The 2nd Airborne Infantry Brigade was formed at Camp Mackall, North Carolina on 20 June 1943 and included the 507th Parachute Infantry Regiment and the 508th Infantry Regiment.

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