Major conflict1345 – 1500 · 155 years
Aztec Expansion
Mexico · Mesoamerica
Mexica/Aztec imperial expansion conquered dozens of Mesoamerican city-states through military campaigns.
Estimated casualties
500Ksingle estimate · no range published
What happened
The Aztec Empire, centered at Tenochtitlan, expanded through military conquest under successive emperors. Montezuma I (1440-1468) launched systematic campaigns against neighboring kingdoms, establishing tributary relationships. Subsequent emperors expanded the empire to encompass over 600 subject city-states. Aztec strategy combined direct military conquest with tributary diplomacy. The empire extracted tribute in goods, labor, and captives for sacrifice.
Why it mattered
Aztec imperial expansion created the largest Mesoamerican political unit before Spanish conquest. The tributary system's oppressive burden motivated indigenous allies to support Cortés.
Belligerents2
- Aztec Empire
- Mesoamerican tribes
ON THE MAPAztec Empire
Conflict graph
SUB-CONFLICTS · 3
Sources
- Wikipedia — text reused under CC BY-SA 4.0
Open in the atlas →Seeks the timeline to 1345 and opens this record.
Cite as: Aztec Expansion (1345 – 1500). War Atlas. https://waratlas.org/c/aztec-expansion · Sources & methodology