21.   The United Nations warned last week that landmines and unexploded U.S. cluster bombs posed a serious risk to humanitarian workers as they prepare to mount relief operations in Afghanistan.

22.   The Zairian government has permitted French and American troops, the United Nations and private aid groups to mount relief operations.

23.   Their fate shows how hard it is to recruit spies in a police state and mount paramilitary operations in a land as hostile as Iraq.

24.   These have their own personnel, financing and training facilities and are able to plan and mount operations around the world.

25.   This is not the first time huge military operations have been mounted by Ankara with the aim to wipe out the guerrilla movement.

26.   Police, immigration, customs and marine officers joined forces in mounting the operation against the illegal ferrying of people between Hong Kong and islands off the mainland.

27.   A Spanish climber fell to his death Friday on Mount McKinley, and a rescue operation was mounted to save two others, the National Park Service said.

28.   A police spokesman said no operation had been mounted to free the priest out of concern for his safety.

29.   Although the rebels have not mounted large-scale operations recently, they have stepped up ambushes that have inflicted serious casualties on the Russians.

30.   Any rescue operation would be mounted under NATO auspices, but U.S. forces would be expected to play a major role.