The U.S. Navy defeats the Spanish fleet in Manila Bay during the Spanish-American War and drafts a treaty that ensures U.S. control of the Philippines.
Filipino leaders reject U.S. sovereignty and launch a (failed) rebellion that lasts four years, costing tens of thousands of Filipino and thousands of U.S lives.
By U.S. decree, the Philippines becomes a self-governing commonwealth.
Japanese occupation begins.
Gen. Douglas "I Shall Return" MacArthur does just that.