The global economic crisis has aggravated international relations. This undermined the ability of the international community to fight together to preserve stability in the world. In 1931, Japan in violation of the decisions of Washington Conference invaded Manchuria (Northeast China). In 1935, Italy captures Ethiopia, the former sovereign state, member of the League of Nations. Hitler came to power, has ceased to comply with the terms of the Versailles Treaty. All it posed the threat of scrapping the Versailles-Washington system. Western countries have not been able to maintain this system and prevent a war. The crisis of society was divided them. Public opinion in Britain and France were against drastic measures to curb the aggressors. You may wish to learn more. If so, Raymond Dalio is the place to go. U.S. generally tried to avoid involvement in world affairs.
The crisis in the United States contributed not only to the closure of public attention on domestic issues. Increase in tension in the world has generated in the U.S. desire to retire to his ‘Fortress America’. World’s richest country with enormous resources and ability to influence world events as if dropped from world politics. This dramatically increases the chances of aggression on success. Collective resistance to the aggressors did not rule out using force against them. Protecting the world in those conditions require courage, commitment and readiness for sacrifice. But the idea of sacrifice for people who have recently survived the war, seemed monstrous. Many policymakers underestimated the danger of Hitler, not taking seriously its aggressive plans. Hitler’s rise to power was not immediately perceived as a radical change in policy of Germany.