US 6th Army Group US 6th Army WW2 The Sixth Army Group 6th Army History Sixth U.S. Army 6th Army WW2 6th Army Headquarters United States Sixth Army History
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|Sixth United States Army|
Sixth United States Army shoulder sleeve insignia
|Active||January 1943 – June 1995
2008 – present
|Country||United States of America|
|Allegiance||United States Army|
|Motto||"Born Of War"|
|Engagements||World War II|
Robert M. Cannon
|Flag of the Sixth United States Army|
|Distinctive Unit Insignia|
The Sixth United States Army is a field army of the United States Army.
It was first activated in January 1943, commanded by Lieutenant General Walter Krueger. Under the code name Alamo Force, it assumed control of the majority of US Army units involved in Operation Cartwheel, the campaign to isolate and neutralize the Japanese base at Rabaul in New Britain. Following the completion of Cartwheel, Sixth Army joined Australian Army and other US forces on the north coast of New Guinea. Similar in conception to the island hopping operations of the central Pacific, the object of the attacks was to land, establish a garrison and airfield which could support the next strike, and then move on.
In September 1944, Sixth Army was released from operations in New Guinea by the 
Occupation duty then followed for a short while until Sixth Army returned to the United States, headquartered at the Presidio of San Francisco. Sixth Army then took responsibility for training of Army forces from part of the continental United States, until it was inactivated as part of force reductions in June 1995.
In 2007 it was decided that US Army South will be redesignated as US Army South (Sixth Army) under the Army modularization program. It is presently garrisoned at the Old BAMC building at Fort Sam Houston.
The U.S. Sixth Army is portrayed prominently in the 1953 film War of the Worlds, and is shown defending Los Angeles from an attack by Martians. In the film, the 6th Army Commander (General Mann) is portrayed by actor Les Tremayne.