MS View of checkpoint with armed rifle / Bethlehem, Palestine, Israel

Week in Pictures 04/01/2011 on April 01, 2011 in London, England (Footage by Getty Images)

MS PAN woman rifle shooting in sunny winter day / Whistler ,BC ,Canada

MS PAN One instructor talking with couple in sunny winter day / Whistler ,BC ,Canada

Battlefield Flashbacks

MS ZO Queen Elizabeth II with Prince Philip at Buckingham Palace for trooping of Colour Celebrations / London, United Kingdom

Father Teaches Daughter to Fire a 22 Caliber Rifle at Maryland Small Arms Range on January 20, 2013 in Upper Marlboro, Maryland (Footage by Getty Images)

CU U.S. Special Operation Forces soldiers in water with automatic rifles and shotgun in Vietnam war / Jungle, Hue, Vietnam

MS TS U.S. Special Operation Forces rifleman with M16 automatic rifle in Vietnam war / Jungle, Hue, Vietnam

MS U.S. Special Operation Forces soldiers in water with shotgun at jungle in Vietnam war / Jungle, Hue, Vietnam

MS U.S. Special Operation Forces soldiers with AR15 and M16 automatic rifles in Vietnam war / Jungle, Hue, Vietnam

CU R/F U.S. Special Operation Forces radioman calling for helicopter support in Vietnam war / Jungle, Hue, Vietnam

MS U.S. Special Operation Forces soldiers with automatic rifles walking in river in Vietnam war / Jungle, Hue, Vietnam

MS U.S. Special Operation Forces rifleman with M16 automatic rifle in jungle of Vietnam war / Jungle, Hue, Vietnam

CU U.S. Special Operation Forces rifleman coming out from water with M16 automatic rifle in Vietnam war / Jungle, Hue, Vietnam

CU U.S. Special Operation Forces gunner with M60 machine gun in Vietnam war / Jungle, Hue, Vietnam

CU R/F U.S. Special Operation Forces rifleman with submachine gun in Vietnam war / Jungle, Hue, Vietnam

MS U.S. Special Operation Forces soldiers with automatic rifles walking in river in Vietnam war / Jungle, Hue, Vietnam

Female Marine recruits inspect their rifles while on the rifle range during boot camp February 25, 2013 at MCRD Parris Island, South Carolina. (Footage by Scott Olson/Getty Images) Women Attend Marine Boot Camp At Parris Island, South...

Military Police on parade in Oahu during the 1950's.

CU Shot of man's hands loading high caliber hunting rifle / Ongava, Kunene, Namibia

MS SLO MO Shot of man shoots an AR-15 rifle in winter wood landscape / Bend, Oregon, United States

MS SLO MO Shot of man shoots an AR-15 rifle in winter wood landscape / Bend, Oregon, United States

MS SLO MO Shot of man shoots an AK-47 rifle in slow motion in winter wood landscape / Bend, Oregon, United States