Recognized Same-sex marriage has been legal in the British Indian Ocean Territory since 3 June 2014.
In 1965, the United Kingdom split the Chagos Archipelago from Mauritius to form the British Indian Ocean Territory.
Between 1968 and 1973, British authorities forcibly removed the local Chagossian population from Diego Garcia, Peros Banhos and the Salomon Islands.
[11] On 28 April 2014, the Privy Council of the United Kingdom enacted the Overseas Marriage (Armed Forces) Order 2014, which took effect on 3 June 2014.
One of the parties must be a member of the British Armed Forces, or be a person who performs "administrative, executive, judicial, clerical, typing, duplicating, machine operating, paper keeping, managerial, professional, scientific, experimental, technical, industrial or labouring functions" for the Armed Forces,[1] serving in the territory.