The History Cat
The History Cat: Causes of World War I
Summarizes the major causes for the outbreak of World War I.
Northern Illinois University
Crossroads: Southeast Asia During World War Ii
A comprehensive overview of Southeast Asia under Japanese control during WWII, including Asian responses to Japanese occupation.
University of Maryland
University of Maryland: Republican China (1915 1928)
The history of China during the time just before and just after World War I.
US Navy
Nhhc: Oceanic Period (1890 1945)
Read about the build-up of the U.S. Navy after the Spanish-American War and how it was used to protech the country in World Wars I and II.
Other
New American Nation: Internationalism and Interwar Isolationism
This essay by two foreign policy scholars gives background to the concept that the United States did not really become isolationist after World War I.
Internet History Sourcebooks Project
Fordham University: Modern History Sourcebook
A rich Fordham University site of primary source material that include full-text, and multimedia sites. There are additional study and research guides such as Modern History in the Movies.