Marines with 2nd Light Armored Reconnaissance Battalion, 2nd Marine Division, demonstrate proper techniques on shooting M4 rifles during a family-day event aboard Marine Corps Base Camp Lejeune, N.C., August 7, 2014. During the event, Marine Corps veterans from conflicts such as the Vietnam War, the Korean War, and World War II had the chance to view and use modern weapon systems. (U.S. Marine Corps photo by Lance Cpl. Lucas J. Hopkins/Released)