It didn't make sense to risk a helicopter extraction in heavily wooded, mountainous terrain, in a region where Yugoslav interceptors were active.

Training includes fast roping and explosive entry to buildings as well as helicopter extraction.

The survivors attempt to reach helicopter extraction but encounter various challenges, including Chechen rebels.

After successfully ambushing an enemy squad on a jungle trail, the friendly patrol radioed for immediate helicopter extraction.

The weather didn't permit a helicopter extraction, either by the Americans or the Israelis.

By now the attack was two hours behind schedule, with the first helicopter extractions having been planned for 10h00.

They eventually called a French airstrike in to clear enough space for their helicopter extraction.

The unit then heads for a helicopter extraction, while the militia discovers that someone killed one of their fighters.

Lownds also rejected a proposal to launch a helicopter extraction of the survivors.

He single-handedly held off an enemy assault, arranged for a helicopter extraction of his unit, and again fought off the enemy alone until relief arrived.