Belize was granted independence from the United Kingdom in 1981.

Formerly known as British Honduras, the British maintained a garrison in Belize well into the 1990s, until Guatemala, which has always claimed sovereignty of the country, signed a treaty recognizing Belize's independence.

Queen Elizabeth II visited Belize on two occasions.

[1] On 3 March 2012, Prince Harry visited Belize on a tour of Commonwealth countries in the region as the Queen's representative in her Diamond Jubilee, making this his first solo royal tour.

[3] Following the withdrawal of the United Kingdom from the European Union, the UK and the CARIFORUM states signed a continuity trade agreement based on the EU agreement; this agreement has governed Belize–UK trade since 1 January 2021.