This article examines the discussions and decisions which occurred within the British government concerning Britain's military involvement in the Korean peninsula at a time when Britain was pulling out of its military obligations in Asia – colloquially known as the ‘retreat East of Suez’ – in the late 1960s and the early 1970s. After the end of the Korean War, Britain created the Commonwealth Liaison Mission in Seoul and provided a frigate for use in Korean waters by the American-led United Nations Command and British soldiers for the United Nations Honour Guard. When relations between North and South Korea reached crisis point at the end of the 1960s, London was concerned that Britain could be entangled in an unaffordable military conflict in the Korean peninsula. The Ministry of Defence therefore argued for the abolition of the commitment of the British frigate, but the Foreign Office opposed this initiative so as to mitigate the blow to Anglo-American relations caused by Britain's refusal to commit troops to Vietnam. When Edward Heath's government negotiated a Five Power Defence Agreement with Singapore, Malaysia, Australia and New Zealand in April 1971, the Ministry of Defence was, despite the objections of the Foreign Office, finally successful in repealing the frigate commitment for reasons of overstretching military resources. Furthermore, the Ministry of Defence then called for the abolition of the Commonwealth Liaison Mission altogether when it was then discovered that the British contingent of the United Nations Honour Guard would have to fight under the command of the United Nations Commander in case of a military conflict in the Korean peninsula. But this proposal too was rebuffed by the Foreign Office, concerned that such a move would greatly damage Anglo-Korean relations at a time when Britain was considering establishing diplomatic relations with North Korea.
