The speaker says Pizarro's group fell into civil war during the conquest, including a major battle between two Spanish forces in front of the Inca capital.

“And then Pizarro did the same thing and it worked.”

“worked uh with um with the inca but also with pizarro his group ended up getting into a civil war in the middle of this whole thing and one of the most like important battles of this whole campaign was between two spanish forces fighting it out in front of the capital city of the incas and um”