An M2A1 105mm howitzer is fired as a second is loaded in this photo of a Fourth of July celebration at Washington’s Campground in Bridgewater on July 4, 1956 ...

An M2A1 Howitzer will go off, and the runners will begin racing from the Pentagon and Arlington National Cemetery to the Marine Corps War Memorial on Sunday for the 44th Marine Corps Marathon.

PICATINNY ARSENAL, N.J. (Nov. 30, 2012) -- The U.S. Army recently announced that the M2A1 .50 Caliber Machine Gun was among its top 10 "Army Greatest Inventions" for the 2011 calendar year. The ...