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Isolationism Continues
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Topic: From Isolation to World War (1930-1945) The isolationist approach to foreign policy meant U.S. leadership in world affairs diminished after World War I. Overseas, certain nations saw the growth of tyrannical governments that reasserted their power through aggression and created conditions leading to the Second World War. After Pearl Harbor, the United States entered World War II, which changed the country’s focus from isolationism to international involvement.
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Content Statement: During the 1930s, the U.S. government attempted to distance the country from earlier interventionist policies in the Western Hemisphere as well as retain an isolationist approach to events in Europe and Asia until the beginning of WWII.
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Expectations for Learning: Analyze the reasons for American isolationist sentiment in the interwar period.
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Post WWI Foreign Policy Monroe Doctrine – Early 19 th Century – President Monroe tells European countries they can not colonize or interfere in the Americas or it would be seen as an act of aggression – Likewise, the U.S. would not interfere in European affairs
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Post WWI Foreign Policy Roosevelt Corollary – Early 20 th Century – President Teddy Roosevelt adds this to the Monroe Doctrine, basically re-stating to European countries that the U.S. will take care of things in the Americas
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U.S. Isolationism After World War I and especially in the 1930’s, the United States had a policy of isolationism – Take care of ourselves and not get involved in foreign affairs
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Good Neighbor Policy The policy's main principle was that of non-intervention and non-interference in the domestic affairs of Latin America Reinforced the idea that the U.S. would be a “good neighbor” and engage in reciprocal exchanges with Latin American countries
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Good Neighbor Policy The Roosevelt administration expected that this new policy would create new economic opportunities in the form of reciprocal trade agreements and reassert the influence of the U.S. in Latin America
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U.S. Foreign Relations Following World War I, the U.S. was reluctant to become entangled in overseas conflicts that would lead to another war In the past, the U.S. had used the Monroe Doctrine and the Roosevelt Corollary to justify intervention into Latin American affairs U.S. retreated from these policies during the1930’s with the Good Neighbor Policy
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Europe Close to War When FDR took over in 1933, world prospects were grim Europe was again in shambles and close to war Europe did not like democracy or the ideals that the United States was trying to promote
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Around the World America was struggling to make ends meet during the Great Depression Militarists consolidated their hold on the Japanese government
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Fascism Fascism swept Italy and Germany – Fascism: a way of organizing a society in which a government ruled by a dictator controls the lives of the people and in which people are not allowed to disagree with the government
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Neutrality Acts The Neutrality Acts of the 1930’s were attempts to isolate the country from the problems erupting in Asia and Europe
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Neutrality Acts Spurred by the growth in isolationism and non- interventionism in the U.S. following its costly involvement in WWI Sought to ensure that the U.S. would not become entangled again in foreign conflicts
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Legacy of the Neutrality Acts Generally negative reaction: – No distinction between aggressor and victim, treating both equally as “belligerents” Belligerent: a nation or person engaged in war or conflict, as recognized by international law
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Legacy of the Neutrality Acts – Limited the U.S. government’s ability to aid Britain and France against Nazi Germany – Largely repealed in 1941, because of German submarine attacks on U.S. vessels and the Japanese attack on Pearl Harbor
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Germany Begins Taking Territory 1936 – German troops move into the Rhineland, bordering France and Belgium
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Germany Begins Taking Territory 1938 – Germany claimed the Sudetenland, a part of Czechoslovakia GermanySudetenland
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Munich Conference September, 1938 – At the Munich Conference, Hitler invited the leaders of Britain and France to Germany and assured them that he wanted no more territory
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Munich Conference Britain and France allow for Hitler to go on unopposed as he expands German territory in Europe They ignore German military build-up even though it violates the Treaty of Versailles Britain and France gave into Germany hoping that ignoring these actions would prevent conflict from escalating to war – This was known as appeasement
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Stalin and Hitler 1939 – Nazi-Soviet Pact – Hitler and Stalin agreed not to attack one another – Also agreed to divide Poland and Eastern Europe amongst themselves September 1, 1939 – Germany invaded Poland without having to fear of a Soviet attack Two days later, Britain and France declared war on Germany
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New Warfare Blitzkrieg “Lightning warfare” – Strike quickly – Much different than WWI Air power Use fast vehicles – Planes – Tanks – Trucks – Motorcycles
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France Falls Germany marches into France through Belgium Italy joins the side of Germany and invades from the south French Leader Charles DeGaulle escapes to Great Britain June, 1940 – France surrenders – Britain vows to fight alone
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War in Europe The Soviet Union seized eastern Poland, Finland, Estonia, Latvia, and Lithuania 1940 – Germany conquered Denmark, Belgium, Holland, Norway and France 1940 – The Germans severely bombed Great Britain during the Battle of Britain but were unable the defeat the island nation
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Cash and Carry Plan FDR changed the Neutrality Acts through a “cash and carry” plan – Allowed the sale of material to belligerents, as long as the recipients arranged for the transport using their own ships and paid immediately in cash, assuming all risk in transportation Meanwhile, the U.S. prepared for war by setting up the first ever peacetime draft in U.S. history
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Destroyers for Bases September 2, 1940 Agreement between the U.S. and the United Kingdom Fifty mothballed destroyers were transferred to the Royal Navy from the U.S. Navy in exchange for land rights on British possessions The U.S. had chosen a side in the war – They were no longer neutral
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Lend-Lease Act A plan of President Roosevelt’s to help Great Britain March 11, 1941 – The U.S. would lend or lease war materials to the allied countries – These items were to be returned to the U.S. after the lease was over, but that rarely happened
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Lend-Lease Act The U.S. would supply everything necessary for the war, except troops
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The Atlantic Charter Roosevelt met with Churchill in the summer of 1941 and agreed to the Atlantic Charter, a statement that outlined Anglo-American war aims
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Japan Japan felt that they had the right to start an overseas empire, just as European countries such as Britain and France had In 1931, Japan seized Manchuria, China, for its valuable coal and iron The League of Nations failed to help China In 1937, Japan began an all-out attack on China, eventually conquering Korea and French Indo-China as well
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The Japanese Empire – 1942
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The U.S. Enters the War The U.S. was the only nation standing against Japanese domination of the entire Pacific Rim Economic sanctions against Japan produced a diplomatic stalemate Japan launched a ruthless surprise attack against American naval bases at Pearl Harbor Faced with an assault on its own forces, the U.S. finally entered World War II
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From Isolationism to War The U.S. tried to maintain its isolationist approach when war broke out in Europe The U.S. aided countries fighting against fascist aggression – Introduced the cash-and-carry policy – Negotiated the destroyer-for-bases agreement – Enacted the Lend-Lease Policy – Helped write the Atlantic Charter
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From Isolationism to War The expansionist policies of Japan and the bombing of Pearl Harbor ended U.S. isolationist policies Video
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