The foreign policy of the United States during the 1930s is best an example of

Revanchism refers to a political policy aimed at reclaiming lost territory or asserting national revenge, particularly after a defeat. In the context of the 1930s, the U.S. was not focused on reclaiming any lost territories or pursuing revenge against other nations; rather, it was more concerned with avoiding entanglement in foreign conflicts.

Aggressive expansionism involves the active and often forceful extension of a nation's territory or influence. In the 1930s, the U.S. was largely retrenching from overseas commitments, rather than expanding aggressively. This period saw a focus on domestic issues rather than territorial acquisition or military interventions.

Economic imperialism signifies the domination of one nation over the economy of another, usually through economic means rather than military force. While the U.S. did engage in economic activities abroad, the dominant policy of the 1930s was isolationist, emphasizing non-involvement rather than exerting control over other nations' economies.