1.   And wreckage has been found of two American helicopters that went missing on a routine mission from the U S S Okinowa.

2.   American helicopters are to ferry the small arms to a Macedonian base, where a Greek weapons disposal team awaits them.

3.   American helicopters were unable to land because of fog, the Pentagon said, and so special forces commandos set out on foot.

4.   Although their reports cannot be confirmed, tribesmen say American helicopters revisited the area at night and strafed a village.

5.   American helicopter gunships circled overhead.

6.   American helicopters can be stationed at a single airfield to carry out search-and-rescue missions for any allied personnel in Afghanistan.

7.   As American helicopters clattered overhead, two groups were engaged in a silent battle.

8.   As if on cue, a huge green American helicopter wheeled overhead, momentarily drowning out the conversation.

9.   A guard at the airport named Thezab said they were American helicopters, including a helicopter gunship and two light helicopters.

10.   A Pakistani journalist in Wana interviewed by telephone said he could see American helicopters swarming around the site and American jeeps rumbling down the roads.