This book endeavors to explore the national purpose of the United States and of Puerto Rico. The author studies Puerto Rico from the time of 1898 to the late 1940’s. She looks at the doctrine of national self-determination while analyzing the effects of colonialism in Puerto Rico at a time when worldwide decolonization prevailed. The author also investigates the hypocrisy of the United States’ ‘commitment’ to democratic rule and its position as a colonial power. Research methods include the study of relationships between policymakers in the U.S. and Puerto Rico, and the analysis of political pressures and ideologies. The author also makes use of interpretive literature in order to further explore decolonization, national self-determination, and the role of the United States in the international system. This study of morality and politics will enlighten and educate students of nationalism, politics, and international relations.