Did pachacuti help defeat the chancas?

Yes, Pachacuti played a crucial role in defeating the Chancas, a rival group threatening the Inca Empire. As a military leader, he successfully led his forces in a decisive battle, which not only secured the Inca's territory but also marked the beginning of significant expansion under his rule. This victory helped establish Pachacuti as a powerful leader and laid the groundwork for the Inca Empire's growth.