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On June 26, 1945, 50 nations signed a charter to create the United Nations in order to promote international cooperation and human rights. See full-sized image for analysis.
World War I was fought between the Central powers and the Allied powers simultaneously on several fronts in western Europe, eastern Europe, and the Middle East. See full-sized image for analysis.
After Japan attacked the United States in December 1941, World War II became truly global with battles between the Axis and the Allies occurring on nearly every continent. See full-sized image for analysis.