How did huaynas decision to have the empire divided after his death weaken the lnca empire?

Huayna Capac's decision to divide the Inca Empire between his two sons, Atahualpa and Huáscar, created a power struggle that led to civil war. This division undermined centralized authority and cohesion, making the empire more vulnerable to external threats. The ensuing conflict weakened military resources and societal unity, which ultimately facilitated the Spanish conquest. The lack of a unified leadership during a critical period hastened the decline of the Inca Empire.