The United Nations Disengagement Observer Force (UNDOF) is a United Nations peacekeeping mission tasked with maintaining the ceasefire between Israel and Syria in the aftermath of the 1973 Yom Kippur War. The mission was established by United Nations Security Council Resolution 350 on 31 May 1974, to implement Resolution 338 (1973) which called for an immediate ceasefire and implementation of United Nations Security Council Resolution 242.