11.   A senior Defense Department official said that the American helicopter arrived as the Taliban were closing in.

12.   Administration officials acknowledged they were moving gingerly on easing restrictions in light of the recent incident in which North Korea shot down an American helicopter.

13.   Clinton, on the other hand, is less enthusiastic about a French plan to use American helicopters to fly in reinforcements for U.N. peacekeepers already in Gorazde.

14.   Clinton, on the other hand, is far less enthusiastic about a French plan to use American helicopters to fly in reinforcements for U.N. peacekeepers already in Gorazde.

15.   Defense Secretary Donald H. Rumsfeld denied Monday claims by the Taliban that their forces had shot down two American helicopters and captured members of the U. S. Special Forces.

16.   During Desert Storm, an American helicopter is shot down behind Iraqi lines.

17.   Haitian soldiers at military headquarters watching American helicopters over the capital.

18.   He was moved to the American vessel on a winch and flown in an American helicopter to Bahrain, where he underwent surgery before being returned to Iran.

19.   In the letter, Luck says it was a mistake for the American helicopter to have crossed into North Korea.

20.   Its recent efforts to woo the United States, for example, included the shooting down last December of an American helicopter that strayed into northern air space.