What situation was an immediate cause of the collapse of the aztec civilization?

The Spanish came and killed them around 1500 - 1520, about the same time as the incas. The Spanish leader who killed the Aztec leader ( Montezuma ) was called Cortes.

James Dawe
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Started career as professional chef then a district sales manager for a wine & spirits company. Retired in 2005, breeding Araucana chickens.

Um well north korea is a very harsh place because students go to school for 24 hours and almost never rest and the president is well i think sends to much bomb that’s what i think