Yet since I last reported to you, we and the world have been confronted by a number of crises: -During the Arab-Israeli war last June, the hot line between Washington and Moscow was used for the first time in our history. A cease-fire was achieved without a major power confrontation. Now the nations of the Middle East have the opportunity to cooperate with Ambassador Jarring's U.N. mission and they have the responsibility to find the terms of living 