The brigade is subordinate to the First United States Army, headquartered at Rock Island Arsenal, Illinois.

The 181st Infantry Brigade currently falls under the 1st Army's Division West, headquartered at Fort Cavazos, Texas.

[13] The 181st Infantry Brigade trained for 10 months at Camp Lewis prior to being deployed to France in August 1918 under the command of Brig.

[14] After the Meuse-Argonne Offensive and the liberation of France, the Brigade was sent to assist the British during the battle of Ypres-Lys until the signing of the Armistice on 11 November 1918, which ended World War I.

After four months of peacekeeping operations in liberated Belgium, the Brigade returned to the United States and arrived at the port of New York on 2 April 1919 on the U.S.S.

The Brigade was reconstituted in the Organized Reserve on 24 June 1921, still assigned to the 91st Division, and allotted to the Ninth Corps Area.

In July 1944, during the Arno Campaign of the Second World War, the 91st Reconnaissance Troop spearheaded Task Force Williamson under the command of Brigadier General E.S.

The 2nd Platoon of the 91st Reconnaissance Troop and the 1st Battalion, 363rd Infantry were the first to enter Leghorn (Livorno) on its way to liberating Pisa.

The Brigade trains soldiers, sailors and airmen to support contingency operations in the Global War on Terror.

The Brigade also provided Master Gunners and other subject matter experts to support Operation Cold Steel, a major initiative to improve the Army Reserve's gunnery training, from February through May 2018.

[26] [27][28] [29] [30] * Description/Blazon: A Silver color metal and enamel device 1+1⁄8 inches (2.9 cm) in height overall blazoned as follows: Per bend Argent and Azure, in chief a clevis (key) bendwise Or, wards upward and inward and on a base of the first, a rifle, muzzle upward and a saber, grip to base in saltire of the third.