III Armored Corps

III Corps
Active	1918–1919 1927–1946 1951–1959 1961–present
Country	United States
Branch	United States Army
Role	Headquarters
Size	Corps
Garrison/HQ	Fort Cavazos, Texas
Nickname(s)	"Phantom Corps"[1] or "America's Hammer"[2]
Colors	Blue and White
Engagements	World War I World War II Iraq Campaign Operation Inherent Resolve
Commanders
Commanding General	LTG Sean C. Bernabe
Command Sergeant Major	CSM John P. McDwyer
Deputy Commanding General, Maneuver	MG Thomas M. Feltey[3]
Deputy Commanding General, Support	Maj Gen Benjamin J. Cattermole, British Army
Insignia
Shoulder Sleeve Insignia
Distinctive unit insignia
Combat service identification badge

III Corps^[4] is a corps of the United States Army headquartered at Fort Cavazos, Texas. It is a major formation of the United States Army Forces Command.

Activated in World War I in France, III Corps oversaw US Army divisions as they repelled several major German offensives and led them into Germany. The corps was deactivated following the end of the war.

Reactivated in the interwar years, III Corps trained US Army formations for combat before and during World War II, before itself being deployed to the European Theater where it participated in several key engagements, including the Battle of the Bulge where it relieved the surrounded 101st Airborne Division.

For the next 50 years, the corps was a key training element for the US Army as it sent troops overseas in support of the Cold War, the Korean War, and the Vietnam War. The corps saw no combat deployments, however, until Operation Iraqi Freedom in 2003. As of April 2019^[update], III Corps includes some of the oldest formations of their type in the US Army: 1st Infantry Division, 1st Cavalry Division, 1st Armored Division and 1st Medical Brigade.