United Nations Security Council Resolution 309, adopted on February 4, 1972, after reaffirming previous resolutions on the topic, the Council invited the Secretary-General, in close co-operation in a group of the Council composed of representatives of Argentina, Somalia and Yugoslavia, to initiate as soon as possible contacts with all parties concerned to enable the people of Namibia to exercise their right to self-determination and independence. The Council called upon South Africa to co-operate and requested the Secretary-General to report back no later that July 31, 1972.