single-member first-past-the Post constituencies, matching the way Westminster MPs are elected. Following the decision that all MEPs should be elected by some form of proportional representation, the Labour government passed the European Parliamentary Elections Act 1999, creating eleven constituencies on Great Britain, which were first used in 1999. The South West England constituency was expanded from the 2004 elections onward to include Gibraltar, the only British overseas territory that was part of the European Union, following a court case. References Constituencies of the Parliament of the United Kingdom Politics of the United Kingdom Constituency