The paper examines the motivations and implications of the UK's exit from the EU in 2020, highlighting historical and contemporary factors. The analysis highlights regional differences in the 2016 referendum, the role of EU-wide migration, economic change, and the global financial crisis in shaping public opinion. The study highlights the importance of long-standing Euroscepticism in the UK, which led to its exit in the long term. The impact of Brexit has extended beyond the UK's borders, affecting the EU and international trade relations. In sum, Brexit reflects a complex interaction of political and economic forces and offers valuable lessons for the future.