Air defense had all but gone away as a mission.

While in training also used for air defense of Philadelphia area.

He thought his air defense would be effective against our aircraft.

The group provided air defense mission command and control from 1970-1983.

In some missions, like air defense, they account for one hundred percent.

It had no air defenses or any form of military presence.

They were needed, as always, for the air defense of the Reich territory.

The new unit's mission was the air defense of Minnesota.

We've assigned Virginia and her division for the forward air defense.

"Air defense will destroy you a hundred meters from the ground."

In taking a decision consideration must be given to the needs of national air defence.

The instructors were among the world's elite in air defence.

The vehicle has a single machine gun for local air defence, and can carry up to ten men.

Air defence had made huge advances, albeit from a very low starting point.

The rest of the unit is assigned to provide air defence for other vital areas.

We don't want the complete destruction of Syria's air defences.

The difference this made to the effectiveness of air defences is questionable.

Its location, however, was too close to the air defences of Hull to be used for that purpose.

He was frequently lobbied by local groups for better air defences.

We're too busy with the air defence and the struggle in space.