U.S. Army Insignia 1941-45, Volume 1: Army Groups, Armies, Army Corps, Infantry DivisionsPaperback, 15 October 2013

Towards the end of the Great War, the United States Army started to distinguish its units with cloth shoulder insignia. From 1941, due to the terrific expansion of its numbers, these multicolored shoulder patches became more numerous and contributed to the spirit of the new units. This guide illustrates in full color the insignia worn by Army units, in Europe, Asia, and the Pacific, together with a brief history and the main variations.