One day after the Japanese military attacks Pearl Harbor, Hawaii, the United States declares war on Japan. Three days later, Japan's allies, Germany and Italy, declare war on the United States.
- Stokesbury, James L. "World War II." World Book Online Reference Center. World Book, 2010. Web. 13 May 2010.
- U.S. Naval Historical Center photograph NH86118 dated 7 December 1942. Library of Congress Prints and Photographs Division. www.loc.gov. 14 May 2010.