This book surveys the impact of the Monroe Doctrine on United States relations with Latin America, with a particular focus on the Caribbean Basin, since its proclamation in 1823. It explores the historical role of the Monroe Doctrine as the instrument to foreclose future European colonial adventures in the American hemisphere and to exclude from it any political system(s) deemed to be incompatible with the American political tradition. Modeste examines the elastic interpretations of the Monroe Doctrine to justify American territorial expansion and imperial ambitions, premised on a strategic question – the power controlling the Latin American/Caribbean trade routes and Sea Lines of Communication. Fundamental to the narrative is the linkage of the tenets of the Monroe Doctrine to contemporary local/regional crises where governments have applied extraordinary, extra-constitutional measures to exercise control or achieve political ends, mechanisms of peaceful conflict resolution failures, and subversive elements that use unorthodox methods to threaten the integrity of the state. Modeste also traces the transformation of the Monroe Doctrine from a unilateral policy declaration to a multilateral compact for the collective defence of the hemisphere.