In the real world, phalanxes used spears. In Civ IV and Warlords, phalanxes replace spearmen. Makes perfect sense, right? Why were phalanxes changed in BtS to replace axemen instead? Allowing the Greeks to build both phalanxes and spearmen, but not axes, is like allowing the French to build both Musketeers and Musketmen but not longbows.