Nuclear attack submarine force..

Nuclear submarines have been envisaged in the Chinese Navy since the 1950s. Despite ambition and a long history of development, the acquisition of nuclear submarines has been a difficult process. The Cultural Revolution greatly disrupted nuclear submarine development. The Sino-Soviet split prevented any Soviet assistance in nuclear propulsion, and these propulsion problems have been troublesome to this day.

The first Chinese nuclear powered submarine was laid down in 1967 but not completed until 1974. The Han class has experienced more than 20 years of development, the last of the class not being commissioned until 1990. Only five hulls have entered service and have been reported to have experienced nuclear reactor difficulties (though this has been greatly overcome in some aspects by French and subsequent Russian assistance).. more..