 The boundaries between polities were not stable, being subject to the effects of alliances and wars; those "kuchkabaloob" with more centralised forms of government were likely to have had more stable boundaries than those of loose confederations of provinces.When the Spanish discovered Yucatán, the provinces of Mani and Sotuta were two of the most important polities in the region.They were mutually hostile; the Xiu Maya of Mani allied themselves with the Spanish, while the Cocom Maya of Sotuta became the implacable enemies of the European colonisers.