The Security Council discussed this question at its 1022nd–1025th meetings, on October 23–25, 1962. It had before it a letter dated October 22, 1962, from the permanent representative of the United States, in which it was stated that the establishment of missile bases in Cuba constituted a grave threat to the peace and security of the world; a letter of the same date from the permanent representative of Cuba, claiming that the United States naval blockade of Cuba constituted an act of war; and a letter also dated October 22 from the deputy permanent representative of the Soviet Union, emphasizing that Soviet assistance to Cuba was exclusively designed to improve Cuba's defensive capacity and that the United States government had committed a provocative act and an unprecedented violation of international law in its blockade.