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.