But when World War One started they became weapons. Pilots could spy on enemy ... where poisonous gas was used for the first time, gas masks had to be created urgently to protect soldiers during ...

675 * These weapons can deliver a unitary warhead or submunitions, but the U.S. Air Force has not indicated how many of each type were used.

Trench raiding clubs were homemade melee weapons used by both sides during World War I. However, there's something special about the German Trench ...