In Aztec mythology, the god of war and sun is Huitzilopochtli. He is one of the most important deities in the Aztec pantheon, associated with warfare, sacrifice, and the sun. Huitzilopochtli is often depicted as a hummingbird or warrior, reflecting his martial prowess. His worship involved elaborate rituals and sacrifices, emphasizing themes of strength and victory, which were crucial for the survival and prosperity of the Aztec civilization.