International relations; Foreign policy; Intervention; Pan American Union; Monroe Doctrine; United States -- Foreign relations -- South America; South America -- Foreign relations -- United States
International relations; Foreign policy; Intervention; War; Peace; Treaties; League of Nations; World Court; Monroe Doctrine; Aggression (International law); United States -- Foreign relations -- South America; South America -- Foreign relations --...
International relations; Foreign policy; Intervention; Rebellions; Japan -- Foreign relations -- China; China -- Foreign relations -- Japan; United States -- Foreign relations -- Nicaragua; Nicaragua -- Foreign relations -- United States; War