 It also called for the establishment of a United Nations observer force to supervise its implementation.The Agreement was signed on 31 May 1974 and, on the same day, the UN Security Council adopted Resolution 350 to set up UNDOF.On 3 June 1974 General Briceno from Peru arrived, from Cairo, at the headquarters of the UNTSO ISMAC House in Damascus and assumed operational command of all UNTSO Observers detailed to UNDOF.