Fragging is the deliberate or attempted killing of a soldier, usually a superior, by a fellow soldier. U.S. military personnel coined the word during the Vietnam War, when such killings were most often committed or attempted with a fragmentation grenade, to make it appear that the killing was accidental or during combat with the enemy. The term fragging now encompasses any deliberate killing of military colleagues.
M26 grenade, issued to the U.S. Army and U.S. Marines in the Vietnam War, used in many fragging incidents.
G.I. movement veterans protesting the Vietnam War.
In military terminology, friendly fire or fratricide is an attack by belligerent or neutral forces on friendly troops while attempting to attack enemy/hostile targets. Examples include misidentifying the target as hostile, cross-fire while engaging an enemy, long range ranging errors or inaccuracy. Accidental fire not intended to attack enemy/hostile targets, and deliberate firing on one's own troops for disciplinary reasons, is not called friendly fire, and neither is unintentional harm to civilian or neutral targets, which is sometimes referred to as collateral damage. Training accidents and bloodless incidents also do not qualify as friendly fire in terms of casualty reporting.
An American B-17 Flying Fortress "Miss Donna Mae II" is damaged by bombs after drifting under the American bomber flying above it during the bombing of Berlin in 1944. The damage to the horizontal stabilizer caused the plane to go into an uncontrollable spin and crash, killing all 11 crew members.
Soldiers perform a night assault at Camp Atterbury Joint Maneuver Training Center during Bold Quest 2011, a combat assessment exercise to test the interoperability of target identification systems of different allied nations to reduce friendly fire incidents.
