21.   South Africa sent in troops and blocked the overthrow of the government by a rebel army.

22.   The US responded by sending troops into Laos.

23.   He hinted strongly that he might be prepared to send troops in.

24.   The U.S. is sending additional troops to the region.

25.   He has asked the government to send in troops to end the fighting.

26.   Troops were sent to the islands to restore order last November.

27.   Foreign Office sources sniffed at reports that British troops might be sent.

28.   The troops were sent overseas.

29.   Troops were sent at the request of our allies.

30.   Pakistan agrees to send troops to Saudi Arabia.