An old air defence system installed in the 1980s was replaced.

It said its security forces had shot the drone down using previously secret air defence systems.

The Luftwaffe lacked an effective air defence system early in the war.

It is specialised to interfere with the computers of integrated air defence systems.

When forming the new Armed Forces structure, steps were taken to design appropriate air defence systems.

The HQ-2 has been China's primary air defence system for over forty years.

Most modern air defence systems are fairly mobile.

Many of Libya's air defence systems were destroyed during the civil war, how much, if any, remained intact afterwards is unknown.

The Marder is also used as a carrier for the Roland air defence system.

It is a short to medium range ground based air defence system, wheeled, tracked or stationary with two to three operators.

Purchases have included anti-tank and air defence systems.

Or they can do a mission like the Kosovo bombing campaign, where there was a fairly sophisticated air defence system, and come back completely safely."

The U.S. also contributed $75 million in emergency military aid, including transport aircraft and air defence systems.

It was responsible for transport, reconnaissance, and rotary-wing aircraft as well as the national air defence system.

Early on in the planning the need for an up-to-date air defence system and a civilian air traffic control system were combined.

Russia deployed its modern S-300 missile air defence system at its base in the Gali region.

Initially the crew were uncertain that the aircraft they had detected was hostile, leading to delays in alerting the air defence system.

The equipment currently in use by the Pakistan Army is divided into the following main sections: small arms, armour, artillery, aircraft and air defence systems.

The 920x series were built to military specifications and used in military aircraft, mobile field deployed air defence systems and tanks.

Some vessels like Aegis cruisers are as much a threat to aircraft as any land-based air defence system.

The Loara is an autonomous fire unit capable of performing its tasks independently or acting as a component in a wider air defence system.

This class features a stealthy hull and significantly improved air defence systems, an area that had been a major weakness on previous ships designed by China.

A short-range air defence system, it consists of eight missiles with a tracking radar and a surveillance radar.

The Cold War may be over, but the Canadian Air Defence System is still in place.

The P suffix stand for PVO-Strany (country air defence system).