International Journal of Academic Management Science Research (IJAMSR)   Year: 2021 | Volume: 5 | Issue: 10 | Page No.: 120-127 British Exit from the European Union: A Foreign Policy Analysis on National Security Owuamanam, Chukwuma Moses and Ovuoh, Chukwuemeka Ronald Abstract: Foreign policy is driven by the national interest of any Country. A state enters into International relations with other Countries with the primary underlying motive of boosting her national interest. The UK was not among the first six signatories that founded the European Economic Community (EEC) in 1957 that later transmuted into European Union. But, joined in 1973 and later voted in favour of her exit in 2016 which the process may likely be consummated on January 31st, 2020. This work examines Brixit as UK's foreign policy of national Security; laying emphasis that a country's national interest remains consistent while the strategies of achieving it may vary from time to time. It takes account of the basis, justification and the criticism of brixit as Britain foreign policy which is geared towards achieving her national interest of national security.