The Australian Defence College (ADC) comprises three tri-service educational organisations operated by the Australian Defence Force in Canberra, Australian Capital Territory: * the Centre for Defence and Strategic Studies (CDSS), * the Australian Command and Staff College (ACSC) (both located at Weston Creek), and * the Australian Defence Force Academy (ADFA). The first two organisations are sited at a campus at Weston, ACT. This campus has been sold to private hands and leased back by Defence. Both campuses maintain extensive libraries.