The Spanish conquest of the Aztec Empire, also known as the Conquest of Mexico, the Spanish-Aztec War (1519–1521), or the Conquest of Tenochtitlan was one of the primary events in the Spanish colonization of the Americas. There are multiple 16th-century narratives of the events by Spanish conquistadors, their indigenous allies, and the defeated Aztecs. It was not solely a small contingent of Spaniards defeating the Aztec Empire but a coalition of Spanish invaders with tributaries to the Aztecs, and most especially the Aztecs' indigenous enemies and rivals. They combined forces to defeat the Mexica of Tenochtitlan over a two-year period. For the Spanish, Mexico was part of a project of Spanish colonization of the New World after 25 years of permanent Spanish settlement and further exploration in the Caribbean. Source: Wikipedia (en)