第二次世界大战欧洲战场
The 3132nd Sonic Company was composed of US Army soldiers participating in a classified unit named the 23rd Headquarters Special Troops. The Special Troop's mission involved tactical deception activities in the European theatre of World War II. The 23rd Headquarters Special Troops were composed of the 603rd Engineer Battalion, 406th Combat Engineer, and the 3132nd Sonic Company; better known in history as the Ghost Army. The special troops were composed of artists, designers, actors, meteorologists, sound technicians, and their true mission was not to fight, but to deceive the German army. Their props were inflatable tanks and pyrotechnics; their tools camouflage, "spoof" radio plays, special effects, and sonic deception