Australia–Trinidad and Tobago relations Australia–Trinidad and Tobago relations Australia maintains a High Commission in the City of Port of Spain, and the Republic of Trinidad and Tobago maintains non-resident representation in Australia. Both nations formally established diplomatic relations on 7 January 1974. Both countries are members of the Commonwealth of Nations, and comprised as former parts of the British Empire. In 2004, due in part to the robust trade by Australian companies with Trinidad and Tobago's oil sector the Australian government set up the Australian High Commission in Port of Spain. It now serves 14 other Caribbean countries. Trinidad and Tobago is Australia's largest
Queen of Trinidad and Tobago August 1976, when Trinidad and Tobago became a republic within the Commonwealth with the President of Trinidad and Tobago as head of state. The Queen visited Trinidad and Tobago on 7–9 February 1966 and 1–3 November 1985 as part of Caribbean Commonwealth tours, and 26–28 November 2009 to attend the Commonwealth Heads of Government Meeting 2009. Queen of Trinidad and Tobago Elizabeth II was Queen of Trinidad and Tobago from 1962 to 1976. She was also the monarch of the other Commonwealth realms, including the United Kingdom. The monarch's constitutional roles in Trinidad and Tobago were delegated to a Governor-General,