51.   During his meetings, Rubin also will urge Beijing to implement and enforce existing agreements, such as the one on intellectual property rights.

52.   Elsewhere, the Serb Media Center said two Serb policemen were killed and three wounded Monday when their vehicle hit an NATO troops to enforce the agreement.

53.   For one thing, he said, the Bush administration intends to strictly enforce an agreement reached with China last November to curb the spread of missile technology.

54.   He did not rule out shooting Israelis who try to enforce the agreement.

55.   He told CNN that other issues included economic aid, political and constitutional arrangements, and ways of enforcing the agreement.

56.   Katz said that verbal agreement cannot be enforced.

57.   Milosevic is objecting to a provision that calls for NATO troops to be deployed in Yugoslavia to enforce an agreement.

58.   Nor is it clear whether the United Nations or other countries would be willing to contribute the monitors or peacekeepers it would take to enforce an agreement.

59.   Schumacher suggested, without elaborating, that the no-overtaking agreement may be enforced just in the initial section.

60.   Speaking to reporters, she acknowledged that it has been difficult to enforce agreements reached by leaders of the two sides.