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. Part of it's mandate was to establish a buffer zone, as provided in the Agreement on Disengagement between Israeli and Syrian Forces of 31 May 1974 on the Golan Heights. The Mission continues to perform its functions effectively with the cooperation of the parties.