World War II (1920-1945) 315. Good Neighbor Policy: withdrawal of American troops from foreign nations (especially Latin America) to improve international relations and unite western hemisphere; Clark Memorandum(rebukes the ?big stick?); peaceful resolution of Mexican oil fields 316. Isolationism in 1920s & 1930s: Americans concerned with economic depression; sought to avoid European involvement, no apparent immediate threats 317. Neutrality Acts, 1935-37: prohibited aiding of belligerent nations,?banned civilian involvement; limited power of president during international war, built up armed forces 318. Quarantine Speech, 1937: FDR encouraged democracies to quarantine their opponents (economic embargos); criticized by isolationists