The History Cat
The History Cat: Causes of World War I
Summarizes the major causes for the outbreak of World War I.
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.