What motivation nonaztec native Americans to help Cortes fight the Aztecs?

Non-Aztec Native Americans were motivated to help Hernán Cortés fight the Aztecs for several reasons, including longstanding grievances against the Aztec Empire, which had imposed tribute and demanded sacrifices from them. They sought to regain their autonomy and improve their circumstances by aligning with the Spanish, who they viewed as potential allies against their oppressors. Additionally, the promise of new trade opportunities and the hope of gaining favor with the Spanish in the new colonial order further incentivized their support.