The "Leave Campaign" refers to the movement advocating for the United Kingdom's exit from the European Union (EU). This campaign gained significant attention during the Brexit referendum held on June 23, 2016, where voters were asked whether the UK should remain a member of the EU or leave. The Leave Campaign focused on issues such as national sovereignty, immigration control, and economic independence. Key figures in the Leave Campaign included Boris Johnson and Michael Gove, who argued that leaving the EU would allow the UK to regain control over its laws and borders. The campaign ultimately succeeded, with approximately 52% of voters choosing to leave the EU, leading to a complex negotiation process regarding the terms of the exit.