From newly-captured town, members of the 16th Infantry Regiment, 1st Infantry Division, cross the Weser River in assault boats to take Furstenberg, Germany. US First Army, April 8, 1945. 

A mortar crew in action at an encampment in the Hürtgen Forest, December 13, 1944.(rudeerude)

Mortar crew in action

June 1942. Fort Knox, Kentucky. “Infantryman with halftrack. A young soldier sights his Garand rifle like an old-timer. He likes the piece for its fine firing qualities and its rugged, dependable mechanism.” 4×5 Kodachrome transparency by Alfred Palmer for the Office of War Information

The site I found this has some pretty amazing colour photo's. 