President T. roosevelt
FDR
Joseph Stalin was the leader of the Soviet Union when the United States entered World War 2.
Franklin Delano Roosevelt, president of the United States of America (1933-1945) general eisenhower was also one of the main military leaders during the time, and also was incharge of many battles, such as D-Day. Paddy
The United States lost their place as an world economic leader when Europe and Japan challenged America's world economic supremacy. Inexpensive and efficient Japanese cars went into the market while Europe products made strong competition to Americanized goods. This led to underemployment, causing a downfall in the United State's economy and a loss in place of a world economic leader.
1812
Woodrow Wilson
FDR
The united states of America
United States
United states
During World War, conservation of food and supplies was needed to feed Europe and the Army. The conservation leader during this time was the head of the United States Food Administration. The head of the agency was Herbert Hoover.
Joseph Stalin was the leader of the Soviet Union after World War II. While allies of Britain and the United States during the war, this was mainly because all considered Hitler to be their enemy. Directly, after the war, Britain and the United States ended their relationship with Stalin.
The United States (USA), due to its "superpower" status (both economically and militarily) and international presence, is considered the leader of the free world. It can also be argued there is not just one leader - but the United States and the United Kingdom are possibly two of the leaders.
There was no one "world leader", but the two main competing nations were the United States and the Soviet Union.
United States Navy operations during World War I happened in 1917.
Mao Zedong
No. Hitler was the leader of Germany during WW2. Franklin Delano Roosevelt was President of the United States.