The Conferences at Cairo and Tehran, 1943. United States Department of State. The First Cairo Conference. 1943. The President then referred to the question of the Ryukyu Islands and enquired more than once whether China would want the Ryukyus. The Generalissimo replied that China would be agreeable to joint occupation of the Ryukyus by China and the United States and, eventually, joint administration by the two countries under the trusteeship of an international organization.