Today in WW II: 15 May 1940 Dutch armies surrender to Germany.  More 
15 May 1942 Gas rationing begins for the Eastern United States.
15 May 1942 US Congress authorizes Women's Auxiliary Army Corps [WAAC].
15 May 1944 Germans begin withdrawal from the Gustav Line to new positions south of Rome, Italy.
Visit the Olive-Drab.com World War II Timeline for day-by-day events 1939-1945! See also WW2 Books.

Pre-World War II 3-Ton GMC Trucks

GMC ACKWX353
Scan: Courtesy of Richard Notton from Bart Vanderveen's "Observer's Fighting Vehicle Directory, WW II."

GMC ACX504
Scan: Courtesy of Richard Notton from Bart Vanderveen's "Observer's Fighting Vehicle Directory, WW II."