Franklin Roosevelt was president of the United States during the Great Depression and World War II. Franklin Roosevelt became president in 1933. The United States economy was weak. Banks failed. Many people did not have jobs. Franklin Roosevelt tried to fix the economy. He made rules for banks and the stock market. He started programs to create jobs and help workers across the country. The United States joined World War II in 1941. Americans joined Britain and the Soviet Union to fight against Germany, Italy, and Japan. Franklin Roosevelt was the president until he died in 1945. Roosevelt led America through the challenges of the Great Depression and World War II.