What European civilization led to the collapse of the Incan Empire?

Decisive Spanish victory, execution of the last Inca emperor Atahualpa and fall of the Inca Empire, defeat and end of the last Inca resistance.

The Spanish conquistador Pizarro and his men were greatly aided in their enterprise by invading when the Inca Empire was in the midst of a war of succession between the princes Huáscar and Atahualpa.

Explanation:

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.

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