It entered service in 1953 and replaced a variety of different anti-aircraft systems in armored divisions.

It's an anti-aircraft system, to shoot down Bajoran raiders as they attempt to leave the atmosphere.

Mora continued on with his equipment as Daul left the room, and wondered if it was true, about the anti-aircraft system.

Rockets seemed invincible for the existing and future anti-aircraft systems.

The first stage was to attack Yugoslav's anti-aircraft systems, an effort that is still under way.

Still lacking an effective anti-aircraft system, the Army started development of two stop-gap systems that were meant to operate in concert.

Both testimonies state that part of the problems stem from its original design as an anti-aircraft system.

Since then, Chinese radars, anti-aircraft systems and infantry weapons were purchased.

The Japanese radar, fighter, and anti-aircraft systems were so ineffective that they could not hit the bombers.

The Germans were keen to get some sort of useful ground-based anti-aircraft system into operation.