The 28th Infantry Division ("Keystone") is a unit of the United States Army National Guard, and is the oldest division-sized unit in the Army. Some of the units of the division can trace their lineage to Benjamin Franklin's battalion, The Pennsylvania Associators (1747–1777). The division was officially established in 1879 and was later redesignated as the 28th Division in 1917, after the entry of America into the First World War. It is today part of the Pennsylvania Army National Guard, Maryland Army National Guard, Ohio Army National Guard, and New Jersey Army National Guard.
The 112th Infantry Regiment, also known as the Sixteenth Pennsylvania, is a unit in the Pennsylvania National Guard which can trace its lineage back to before the American Civil War.
The 42nd Infantry Division Sustainment Brigade is a United States Army sustainment brigade of the 42nd Infantry Division of the New York Army National Guard headquartered out of the 369th Regiment Armory in Harlem, New York. This unit is descended from the 369th Infantry Regiment.
The 150th Field Artillery Regiment is a field artillery unit in the Indiana Army National Guard.
The 103rd Armor Regiment is an armored regiment in the Pennsylvania National Guard first formed in 1941. Its legacy unit, 3rd Battalion, 103rd Armor, is a subordinate command of the 55th Heavy Brigade Combat Team, 28th Infantry Division.
The 107th Cavalry Regiment, Ohio Army National Guard, is a parent regiment under the U.S. Army Regimental System, with headquarters at Hamilton, Ohio. It currently consists of the 2nd Squadron, 107th Cavalry Regiment, part of the 37th Infantry Brigade Combat Team (BUCKEYE), Ohio National Guard located throughout southwest Ohio.
The 157th Field Artillery Regiment (First Colorado) is a United States Army Regimental System field artillery parent regiment of the United States Army National Guard, represented in the Colorado Army National Guard by the 3rd Battalion, 157th Field Artillery Regiment, part of the 169th Field Artillery Brigade at Colorado Springs.
The 133rd Field Artillery Regiment is a parent field artillery regiment of the United States Army National Guard. It is currently represented in the Texas Army National Guard by the 1st, 3rd, and 4th Battalions.
The 158th Field Artillery Regiment is a Field Artillery regiment of the Army National Guard.
The 213th Air Defense Artillery is a regiment in the Pennsylvania Army National Guard.
The 1st Battalion, 160th Field Artillery Regiment is headquartered in Chandler, Oklahoma. It is a part of the 45th Infantry Brigade Combat Team, Oklahoma Army National Guard.
The 116th Field Artillery is a regiment of the Florida Army National Guard. Currently there are two battalions; 2-116th FA is fires battalion for the 53rd Brigade Combat Team, and 3-116th (HIMARS) is part of the 164th Air Defense Artillery Brigade, both of the Florida Army National Guard.
The Chatham Artillery is an artillery unit that has played a leading role in the history of the state of Georgia since the American Revolution. In 1776, Thomas Lee was authorized to enlist a provincial company of artillery for the defense of Savannah, the first such unit in Georgia's history. Commanded by Joseph Woodruff, they defended the right flank of American forces when the British attacked Savannah. They saw service in the Oconnee wars, The Embargo Wars, and The War of 1812. They were part of the force that occupied Fort Pulaski that opened the American Civil War, and served in and around Savannah and Charleston South Carolina before joining General Johnston's forces in Columbia, South Carolina. After the reorganization in 1872, they mustered out to the border with Mexico, to stop Pancho Villa's raids in the United States. They served with the "Dixie Division" in France during World War I, and landed on Normandy Beach on D-day plus 4 in World War II. They breached the Siegfried Line, and were at the Elbe River when the war ended. In 2005 they were mobilized again into federal service, as an element of the 48th Brigade Combat team serving in Iraq, part of Operation Iraqi Freedom. The Chatham Artillery was re-mobilized in 2009 to support Operation Enduring Freedom in Afghanistan, personally training Afghan Troops and Police Forces. They were demobilized in 2010 at Fort Stewart, Georgia. Today they remain in service, as a modular artillery brigade of the Georgia Army National Guard, the 118th Field Artillery.
The 114th Field Artillery Regiment is a field artillery regiment of the Mississippi Army National Guard. The regiment's 2nd Battalion is the cannon battalion assigned to the 155th Armored Brigade Combat Team.
The 118th Field Artillery Regiment is a field artillery regiment of the Georgia Army National Guard. The regiment's 1st Battalion is the cannon battalion assigned to the 48th Infantry Brigade Combat Team. It is one of several National Guard units with colonial roots and campaign credit for the War of 1812.
The 122nd Field Artillery Regiment is a field artillery regiment of the Illinois Army National Guard. The regiment's 2nd Battalion is the cannon battalion assigned to the 33rd Infantry Brigade Combat Team.
The 120th Field Artillery Regiment is a field artillery regiment of the Wisconsin Army National Guard.
The 123rd Field Artillery Regiment is an active Field Artillery Branch regiment of the Illinois Army National Guard. The regiment's 2nd Battalion last served as a towed, 155mm cannon battalion assigned to the 169th Field Artillery Brigade, though administratively under the control of the 65th Troop Command.
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 127th Field Artillery Regiment was a field artillery regiment of the Kansas Army National Guard that traced its lineage to 1916. The 1st Battalion, the only active unit of the regiment, was inactivated in 2007.
United States Army 
Field artillery 
