A flower war or flowery war (, ) was a ritual war fought intermittently between the Aztec Triple Alliance and its enemies from the "mid-1450s to the arrival of the Spaniards in 1519." Enemies included the city-states of Tlaxcala, Huejotzingo, and Cholula in the Tlaxcala-Pueblan Valley in central Mexico. In these wars, participants would fight according to a set of conventions.