United Nations Security Council Resolution 50, adopted on May 29, 1948, called upon all governments and authorities involved in the conflict in Palestine to order a cessation of all acts of armed force of four weeks, to refrain from introducing any fighting personnel into Palestine, Egypt, Iraq, Lebanon, Saudi Arabia, Syria, Transjordan or Yemen during the cease-fire, to refrain from importing or exporting war material into or to Palestine, Egypt, Iraq, Lebanon, Saudi Arabia, Syria, Transjordan or Yemen during the cease-fire.