U.S. Army
Shoulder Sleeve Insignia
(Field Armies)
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 Allied Airborne Army

First Army (WWII)

First Army (1950s)

Second Army (WWII)

Second Army (1950s)

Third Army

Fourth Army

Fifth Army

Sixth Army (WWII)

Sixth Army (1950s)

Seventh Army

Eighth Army

Ninth Army

Tenth Army

Fourteenth Army
(Ghost Army for Normandy Deception)

Fifteenth Army