US-Japan security treaties

A term encompassing both the United States-Japan Security Treaty (signed September 8, 1951; implemented April 28, 1952) and the successor Treaty of Mutual Cooperation and Security (signed January 19, 1960). The Treaty of 1952 is inseparable from the San Francisco Peace Treaty and was the offspring of the cold war between the United States and the Soviet Union. The treaty's preamble states that maintenance of US armed forces in and about Japan is legally justified by Japan's right to enter into collective security arrangements and by the principle of the United Nations charter that all nations possess an inherent right of individual and collective self-defense. (adapted from Japan: An Illustrated Encyclopedia. Tokyo: Kodansha, 1993)