
The 1st Air Defense Artillery is an air defense artillery regiment in the United States Army first formed as a field artillery unit in 1821.

The 2nd Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army, first formed in 1821 as a field artillery unit.

The 3rd Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army, first formed in 1821 as the 3rd Regiment of Artillery.

The 4th Air Defense Artillery Troupe was constituted 1 June 1821 in the Regular Army as the 4th Regiment of Artillery and organized from new and existing units with headquarters at Pensacola, Florida. As a result of the division of the Artillery Corps into Coast and Field Artillery units, the Regiment was broken up 13 February 1901, and its elements reorganized and redesignated as separate numbered companies and batteries of the Artillery Corps.

The 5th Air Defense Artillery Regiment is an Air Defense Artillery regiment of the United States Army, first formed in 1861 in the Regular Army as the 5th Regiment of Artillery.

The 6th Air Defense Artillery Regiment is an air defense artillery regiment in the United States Army, first formed in 1898 as the 6th Regiment of Artillery. The 6th and 7th U.S. Artillery Regiments were constituted on 8 March 1898, three weeks after the explosion of the USS Maine in Havana, Cuba on 15 February 1898, as the United States' declaration of war on Spain and commencement of the Spanish–American War seemed imminent.

The 7th Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army, first constituted in the Regular Army as the 7th Regiment of Artillery on 8 March 1898. The 6th and 7th U.S. Artillery Regiments were constituted on 8 March 1898, three weeks after the explosion of USS Maine in Havana, Cuba on 15 February 1898, as the United States' declaration of war on Spain and commencement of the Spanish–American War seemed imminent.

The 41st Field Artillery Brigade ("Railgunners)" is a field artillery brigade of the United States Army. The brigade was active in 1918, from 1921 to 1931, 1942–1944, 1952–1969, 1972–2005, 2007–2015, and 2018 to present. It has been stationed in Virginia; Hawaii; Oklahoma; Texas, and Germany. It has served in World War II, Vietnam, Operations Desert Shield & Desert Storm, Kosovo, and Operation Iraqi Freedom.

The 43rd Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army first constituted 1918 in the Regular Army.

The 44th Air Defense Artillery Regiment is an Air Defense Artillery regiment of the United States Army, first constituted in 1918 in the Regular Army during World War I. During World War II the unit served as the 54th Coast Artillery Regiment

The 52nd Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army first organized in 1917 as a railway gun unit. It continued in that role unit 1943, when the regiment was broken in separate railway gun battalions, and in the following year the units were reorganized and redesignated as field artillery.

The 44th Air Defense Artillery Regiment is an Air Defense Artillery regiment of the United States Army, first constituted in 1918 in the Regular Army during World War I. During World War II the unit served as the 54th Coast Artillery Regiment

The 55th Air Defense Artillery Regiment was an Air Defense Artillery regiment of the United States Army that was first constituted in 1917 in the Regular Army. It was previously the 55th Artillery, U.S. Army Coast Artillery Corps. (CAC)

The 56th Air Defense Artillery is a training regiment in the United States Army.

The 71st Air Defense Artillery was a regiment in the United States Army.

The 197th Field Artillery Regiment is a regiment in the New Hampshire Army National Guard.

The 206th Field Artillery Regiment is a United States artillery regiment, currently represented in the Arkansas Army National Guard by the 1st Battalion, 206th Field Artillery, Headquartered at Russellville, Arkansas. The 1–206th FA is an element of the 39th Infantry Brigade Combat Team.

The 107th Infantry Regiment was a regiment of the New York Army National Guard. The regiment was formed in 1917 and disestablished in 1993.

The 107th Infantry Regiment was a regiment of the New York Army National Guard. The regiment was formed in 1917 and disestablished in 1993.

The 214th Field Artillery is a regiment in the Georgia National Guard.

The 94th Cavalry Regiment is a United States Army cavalry regiment, represented in the Minnesota Army National Guard by 1st Squadron, 94th Cavalry, part of the 1st Armored Brigade Combat Team, 34th Infantry Division, stationed at Duluth.

The 244th Air Defense Artillery Regiment is an air defense artillery regiment of the United States Army first formed on June 24, 1799 as the 6th Regiment of Infantry (NYNG).

The 245th Coast Artillery Regiment was a Coast Artillery Corps regiment in the New York National Guard. It garrisoned the Harbor Defenses of New York, New York and predecessor commands 1924–1944.

The 429th Brigade Support Battalion is a combat service support battalion of the United States Army and the Virginia National Guard. It is part of the 116th Infantry Brigade Combat Team, Virginia Army National Guard.

The 249th Coast Artillery Regiment was a Coast Artillery Corps regiment in the Oregon National Guard. It garrisoned the Harbor Defenses of the Columbia, Oregon and Washington 1924–1944.

The 369th Infantry Regiment, formerly known as the 15th New York National Guard Regiment and commonly referred to as the Harlem Hellfighters, was an infantry regiment of the New York Army National Guard during World War I and World War II. The Regiment consisted mainly of African Americans, though it also included several Puerto Rican Americans during World War II. With the 369th Infantry Regiment, it was known for being one of the first African American regiments to serve with the American Expeditionary Forces during World War I.