1.   And it changed when the helicopter got shot down.

2.   Earlier, other Pentagon officials had said that at least six troops had been killed and several wounded when a U.S. military helicopter was shot down.

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

4.   He had volunteered to help rescue eight critically wounded soldiers near Katum, Vietnam, when his helicopter was shot down.

5.   In the mission pack, your helicopter is shot down before you are given the order to murder the scientists.

6.   Not far away, two other helicopters were shot down, killing six Russians.

7.   Others said two Russian helicopters had been shot down by the militants.

8.   So far, three Peruvian helicopters have been shot down, Ecuadorean military officials say.

9.   The New Mexico Democrat was on a planned visit to North Korea when a U.S. helicopter was shot down over the communist nation.

10.   The weapons are capable of shooting down helicopters and destroying other targets from a long distance away.