Why was the quarantine speech given?

The quarantine speech, delivered by President Franklin D. Roosevelt on October 5, 1937, addressed the rising threats of aggression from nations like Japan and Italy. Roosevelt advocated for a "quarantine" of aggressor nations to prevent the spread of war, suggesting that the United States should take a stand against these countries' expansionist policies. He aimed to raise public awareness about the dangers of isolationism and promote international cooperation to maintain peace. This speech marked a pivotal moment in U.S. foreign policy, signaling a shift towards greater involvement in global affairs.