The Third Tikal-Calakmul War was the third in a series of wars between Tikal and Calakmul, (Tikal-Calakmul Wars) two of the Major superpowers of the Maya Civilization during the classic period.During the third war the vassal state of Quiriguá played an important role when it declared independence from Copán Tikal's closest ally in the south, and then allied itself with Calakmul.