中国人民解放军第二炮兵部队
After their first nuclear test (China claims minimal Soviet assistance before 1960) on 16 October 1964, China was the first state to pledge no-first-use of nuclear weapons. On 1 July 1966, the Second Artillery Corps, as named by Premier Zhou Enlai, was formed. In 1967, China tested a fully functional hydrogen bomb, only 32 months after China had made its first fission device. China thus produced the shortest fission-to-fusion development known in history.