This paper examines in broad lines the relations between Great Britain and the Kingdom of Serbs, Croats and Slovenes (Yugoslavia) throughout the two interwar decades of the latter country’s existence. The survey shows that Yugoslavia was the most important country in the Balkans and thus commanded serious attention of British diplomacy, since Yugoslav foreign policy had an impact on Great Power rivalries in South-Eastern Europe incommensurate with her size and actual strength. While Yugoslavia constantly sought security for her borders, the Foreign Office wanted to see her as a pillar of peace and stability in the region. With her permanent troubles with hostile neighbors, most notably Italy, and internal tensions, the main of which was Cro...