By the mid-twentieth century, Great Britain’s imperial power was in irreversible decline, weakened by economic strain, nationalist uprisings, and postwar geopolitical shifts. Despite attempts to maintain control through constitutional reforms and local autonomy, British efforts failed to contain rising nationalist movements, particularly in Cyprus. The island’s strategic importance, especially during the Cold War and in relation to Middle Eastern interests, made it crucial for Britain to retain sovereignty. However, British policies clashed with the Greek Cypriot demand for union with Greece, creating deep tensions. Ultimately, Britain’s strategic priorities and its “divide and rule” approach shaped Cyprus’s political trajectory, as reflected in the Zurich–London Agreements, which institutionalized division and limited genuine independence. The decline of British influence was underscored by the rise of American hegemony and the ongoing struggle for self-determination in former colonies.