The 1966 Defence White Paper (Command Papers 2592 and 2901) was a major review of the United Kingdom's defence policy initiated by the Labour government under Prime Minister Harold Wilson. The review was led by the Secretary of State for Defence, Denis Healey. The document was centred on the need to support NATO in Europe and made the commitment that the UK, "would not undertake major operations of war except in co-operation with allies." The 1966 announcements undertook to retain the UK presence in Singapore and Malaysia.
However, the mid-late sixties brought an economic crisis and the devaluation of pound sterling. In 1967 and 1968 the government published two further supplements to the review, announcing the strategic withdrawal of British forces deployed East of Suez. This marked a watershed in British foreign policy and the end of a major, enduring world-wide military role.
The Wilson Government decided on significant reductions in the defence budget, with defence being the primary target of the government's efforts to reduce public spending due to wider economic problems. The outcome of the Review resulted in cutting a number of significant new capital projects, including the CVA-01 aircraft carrier and most of the Type 82 destroyers. This was to be part of a phased removal of aircraft carrier capability. Instead, investment would be made in aircraft including the Harrier, the Anglo-French AFVG (which later came to fruition as the Panavia Tornado) and the American F-111 bomber (the latter following the cancellation of the TSR-2 program).
In order to concentrate forces in Europe in support of NATO, the review also recommended withdrawal of the British presence in Aden. The 1967 supplement added accelerated withdrawals from Singapore, Malaysia, Malta, Libya and the Persian Gulf, reversing the election commitment to retaining an East of Suez military role. The 1968 supplement additionally cancelled the order for the F-111.