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.

Since the North Vietnamese Air Force only represented a threat to U.S. bombing raids in the north, not to American bases in the south, anti-aircraft weapons were not used frequently by U.S. forces.

Photos of the "Trophies of the Russian Army" exhibition show equipment from over a dozen countries, giving a glimpse of the sheer diversity of weaponry used by ... supplying of weapons to Ukraine ...

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 ...