His strategy to conquer Mexico was really clever

The Mesoamerican conquest primarily refers to Hernán Cortés' subjugation of the Mexica State in the name of King Carlos I of Spain and in favor of the Spanish Empire between 1492 and 1521. The city of Mexico-Tenochtitlan fell into the hands of the Spanish conquerors on August 13, 1521, after two years of bitter military, political, and conspiratorial attempts in which the indigenous peoples previously overwhelmed by the Mexica participated, along with the Spaniards, to refuse the conditions of subjugation in which they lived. Cortés took advantage of the conflict between indigenous groups. He formed alliances with some groups' enemies and used Marina's intelligence to conquer Mexico. This event signaled the start of the Spanish conquest and the birth of mestizo Mexico.

Other expeditions and military campaigns were launched by Hernán Cortés and his captains between 1521 and 1525 in the central, north, and south of present-day Mexico, establishing the first limits of the Viceroyalty of New Spain. From this initial base, various conquerors and Adelantado continued the conquest by incorporating other territories: California, the Yucatan peninsula, the western area known as Nueva Galicia, the northeast area known as Nuevo Reino de León, the northern area known as Nueva Vizcaya, and other territories of North and Central America. Starting with these events, which drastically altered world geopolitics at the start of the 16th century, Spain would dominate the world for the next three centuries.