U.S. Army
Shoulder Sleeve Insignia
(Army Groups)
WWII and Immediate Post-War Era

United States Army Shoulder Patches and Related Insignia from World War I to Korea: Army Groups, Armies and Corps by William Keller & Kurt Keller

Note: Source Graphics are from Wikipedia, with slight color corrections and additions of borders for accuracy. All graphics, including those done wholly by me are essentially open source.

First Army Group
(Fake for ETO Deception)

Sixth Army Group

Twelfth Army Group

Fifteenth Army Group