SINAI FIELD MISSION shows the routine activities of the diplomats and electronics technicians who operatethe U.S. Sinai Field Mission, the early warning system established in 1976 to help facilitate thedisengagement between Egypt and Israel after the 1973 war. The major purpose of the Mission is tomonitor the approaches to strategic passes and to verify the operations of the Egyptian and Israelisurveillance stations in the Sinai Buffer Zone.