Why were neighboring tribes willing to fight with the Spaniards against the Aztecs?

Answer 1

Neighboring tribes were willing to fight with the Spaniards against the Aztecs primarily due to longstanding grievances and resentment towards Aztec dominance and tribute demands. Many tribes had suffered under the oppressive rule of the Aztecs, who often captured them for human sacrifice or imposed heavy tributes. The arrival of the Spaniards presented an opportunity for these tribes to ally with a powerful force to overthrow their common enemy. Additionally, the Spaniards' advanced weaponry and tactics offered a strategic advantage that made cooperation appealing.