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AP®︎/College US History
Course: AP®︎/College US History > Unit 7
Lesson 12: World War II: mobilizationFDR and World War II
After leading the United States through nearly a decade of Depression, President Franklin Delano Roosevelt took on the role of Commander-in-Chief when the United States entered the Second World War.
Overview
- Democrat Franklin Delano Roosevelt led the nation through the Second World War.
- Roosevelt built a powerful wartime coalition with Britain and the Soviet Union, and led the nation to victory against Nazi Germany.
- His wartime efforts prepared the path for his successor, Harry Truman, to win the war against Japan four months after his death.
- He was elected to the presidency four times, serving from March 1933 until his death in office in April 1945.
Foreign policy in the 1930s
The worldwide economic depression of the 1930s took its toll in different ways in Europe, America, and Asia. In Europe, political power shifted to totalitarian and imperialist governments in several countries, including Germany, Italy, and Spain. In Asia, a resource-starved Japan began to expand aggressively, invading China and maneuvering to control a sphere of influence in the Pacific. The United States, on the other hand, chose to withdraw from world affairs and concentrate on its own economic problems.
During the Great Depression, Americans were in favor of isolationism, believing that problems at home could only be exacerbated by engagement in international affairs. Thus, President Franklin Delano Roosevelt's engagement in foreign affairs was limited, even as the gathering storm of Japanese and German military aggression dimmed global prospects for peace.
Even after war broke out in Europe following Hitler's invasion of Poland in 1939, Roosevelt, reflecting national sentiment, maintained US neutrality. Indirectly, however, Roosevelt supported the British and the Allies in their fight against Nazi Germany. In 1942, Roosevelt made a speech declaring that the United States would serve as an “arsenal of democracy” for the Allies by supplying them with American-made weapons and equipment through the Lend-Lease program.start superscript, 1, end superscript
Roosevelt as Commander-in-Chief
US neutrality in World War II ended after the Japanese (who were allied with Nazi Germany) launched a surprise attack on Hawai'i's Pearl Harbor. Rousing the nation in a national radio address the following day, President Roosevelt declared the date of that attack, December 7, 1941, a “date which will live in infamy.”squared
For the United States, the Second World War was simultaneously fought in two theaters of military combat, in Europe and in the Pacific, a war involving sixteen million American men mobilized into the armed forces—405,000 of whom lost their lives.cubed
Article II, Section 2 of the Constitution provides that, "The president shall be Commander-in-Chief of the Army and Navy of the United States.” In keeping with this Constitutional grant of authority, Roosevelt led the nation in war. He built a close partnership with British Prime Minister Winston Churchill, and later with Soviet premier Joseph Stalin in the fight against Nazi Germany. True to his word, the United States did become the arsenal of democracy, supplying some $50 billion in desperately needed weapons and equipment to the British, Soviets, and other Allied Forces during the war.start superscript, 4, end superscript
The 'Four Freedoms'
During the interwar years and in the war itself, a great worldwide battle of values, forms of government, and economic systems was underway, pitting liberal democracy against fascism, Nazism, and communism. Roosevelt’s advocacy of American ideals and institutions gave eloquent expression to the tenets of liberal democracy for which the nation fought, and included stirring public statements of the importance of America’s founding principles of representative government, religious freedom, toleration, individual liberty, free speech, and capitalism.start superscript, 5, end superscript
In his January 1941 State of the Union Address—often called the Four Freedoms speech—Roosevelt cast the war as a fight for four universal human freedoms, freedom of speech, freedom of religion, freedom from want, and freedom from fear.
Roosevelt's expressions of the core values of a free and open society inspired many in the United States and around the world, even though he did not always live up to those principles. Roosevelt succumbed to fear and racism when he issued Executive Order 9066, which interned 112,000 Japanese Americans during the war.
Roosevelt's death and legacy
Roosevelt was in poor health in the later years of his presidency. The combined toll of his struggle with polio and his role as Commander-in-Chief wore him down. On April 12, 1945 Roosevelt died from a cerebral hemorrhage while visiting Georgia. His vice president, Harry S. Truman, took over the presidency. It fell to Truman to see the United States to final victory in World War II.start superscript, 6, end superscript
Nevertheless, Roosevelt is often ranked, along with Washington and Lincoln, as among the nation’s greatest presidents. His wife, Eleanor, was famous in her own right for transforming the position of First Lady into an office of advocacy and activism during his presidency.
What do you think?
Do you agree with historians who rate Franklin Roosevelt one of the greatest presidents in US history? Why or why not?
Could President Roosevelt have done more to stop the coming of the Second World War? If so, what might he have done?
Do you think Roosevelt was a good wartime leader? Why or why not?
Want to join the conversation?
Why did Japan join the allies in world war 1 but the Nazis in world war 2?(17 votes)
Because the allies were mostly against the push japan was taking. Japan was a small nation lacking in "elbow space", so they seeked more land and invaded china. Since the Germans were more friendly, they joined the axis. They joined the allies in ww1 because they wanted to be acknowledged as a world power. Their invasion of Germans in africa proved military might.(17 votes)
Why did they attack Pearl Harbor?(3 votes)
The Japanese wanted to intimidate the US into lifting the embargo of oil and gas and destroy some fleets along the way. Which we found out didn't work and Japan woke up a sleeping giant the United States(14 votes)
why was Hitler against people that were Jewish?(2 votes)
Theory of Superior Race.
One of the most important reasons for Hitler’s deep seated aversion for the Jews was that he thought of them as an inferior race. In his speeches and conversations, Hitler passionately stated his belief that the Germans were the descendants of the mighty Aryan race.(10 votes)
- abby
why does the us always help other countrys when they are in fights?(2 votes)
The justification for supporting Britain in WWII was that its defense was crucial to the United States and democracy as a whole. However, at the time there was also the popular ideology of Isolationism in which people wanted to avoid interfering with foreign nations' conflicts.(6 votes)
- why was hitler against jews(2 votes)
1) Hitler was a poor man of his times.
2) Hitler was also a man with a tremendous ambition to be in power.
3) When he looked at the political possibilities to attain that power, he concluded that rising by hatred was a pretty safe bet.
4) In Middle Europe, there was already a strong anti-jewish sentiment among some sectors of gthe society. This sentiment went back centuries. It was wrong, it was terrible, but it was there. Hitler made use of that anti-jewish sentiment on his way up the political ladder.
5) Jewish people, as individuals, as a distinct ethinic group, and as a religious group, had done nothing at all to "earn" the hatred of others.
6) My own conclusion is that Hitler was a very bad man who rose to power by exploiting class and race hatred in a people (the ethnic Germans) at a time when they were feeling down and oppressed. I emphasize that Hitler was a very bad man. Those who blindly followed him shared in his badness.(3 votes)
why did hitler halt the troops at normandy?(2 votes)
He didn't, that's a big reason why the Nazis lost.(2 votes)
why were the four freedoms important and useful?(3 votes)- They were the way that FDR got the support of the people in WWII, because if he didn't people would just think that the war is stupid, because of the lack of info on the war that was given to the public.(1 vote)
- Did Great Britain pay the US after WW2 as a thank you for the lend lease(1 vote)
- Those debts were eventually forgiven. To forgive, it is said, is "divine."(3 votes)
How was FDR's response to the war affecting the economy? Without him, would the economy be the way it was?(2 votes)- No one man, even one so great as FDR or so terrible as Ivan the Terrible, is all that influential in and of himself. All of these people whom we laud in history are supported or enabled by people around them. FDR assembled a wonderful group of experts. Sadly, in 2020, the leaders some of once great or not so great any more nations are surrounder by clowns.(1 vote)
- What significant leaders and groups participated in the united state's efforts on the homefront during the second war(1 vote)
- Eleanor Roosevelt was a significant leader. Women were a significant group.
Walter Reuther was a significant leader. The United Auto Workers was a significant group.
Philip Randolph was a significant leader. The Brotherhood of Sleeping Car Porters was a significant group.(2 votes)
