A soldier keeps watch in San Miguel, Cozumel, Mexico.
Members of the Mexican Naval Infantry Force stand at attention during a ceremony commemorating the 165th anniversary of the Battle of Chapultepec in San Miguel, Cozumel, Quintana Roo, Mexico.
Detail of a tank in a Hot Springs, Arkansas park.
Detail of an old U.S. Army tank found in a Hot Springs, Arkansas park.
A cannon at Fort Washita, Oklahoma.
Shotgun shells resemble candy in this macro shot.
Macro detail of 12 gauge shotgun shells.
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