
U.S. Army soldiers fire a 75mm Pack Howitzer as the Half Moon passes West Point during the Hudson River Quadricentennial in New York, June 7, 2009. The Half Moon, a replica of the ship that Henry Hudson sailed up the river that now bears his name, led a procession to retrace the explorer's voyage in 1609. U.S. Army photo by Master Sgt. Dean Welch
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