The term "スペイン conquistador" refers to Spanish explorers and soldiers who played a significant role in the colonization of the Americas during the 15th to 17th centuries. These individuals, motivated by wealth and glory, sought to expand the Spanish Empire and convert indigenous populations to Christianity. Notable conquistadors include Hernán Cortés, who led the expedition that resulted in the fall of the Aztec Empire, and Francisco Pizarro, who conquered the Inca Empire. Their actions had profound impacts on the cultures and societies of the Americas, leading to significant changes in demographics and governance.