The Trusteeship Council held its 26th session at UN Headquarters in New York from April 14 to June 30, 1960. At its opening meeting, the 1051st, the Council adopted its provisional agenda, which included consideration of the most recent annual reports of the administering authorities on the trust territories of Ruanda-Urundi, Tanganyika, the Cameroons under United Kingdom administration, New Guinea, Nauru, the Pacific Islands, Somaliland under Italian administration, and Western Samoa, as well as examination of petitions, reports of UN visiting missions to Ruanda-Urundi and Tanganyika in 1960, matters referred to the Council by the General Assembly and the Secretary General, the report of the UN Advisory Council for Somaliland under Italian administration, and reports of various committees of the Council.