On Aug. 12, 1898, the Spanish-American War ended in armistice.
The Spanish-American War started after the USS Maine suddenly exploded in Havana Harbor in February 1898, an incident that was later found to be caused by faulty ship design but was blamed, at the time, on a Spanish mine. The resulting war was focused on Cuba, but the growing American military contested Spain across its empire, resulting in combat from the Atlantic to Pacific.
The conflict officially only lasted a few months, though its origins began three years before with Cuba’s rebellion from Spain.