Well yes, it wasn't quite that simple - I was erring on the side of brevity for that comment. Although there were other rebellions across Greece, following the false reports of Alexanders death in Pelium, Thebes went far further - arming themselves, declaring full and immediate independance from Macedonia then attacking the Macedonian garrison in the city, killing at least 2 officers and an unknown number of soldiers. There were also rumours (unsubstantiated, but Alexander later used them as a damn good excuse for an invasion) that the Persian Shah had paid the Theban leaders to revolt. No doubt the rest of Greece was looking on, waiting to see how the Macedonians might react and what opportunities they could make out of it - Alexanders response was clear, unequivocal and well understood by every person in Greece (the survivors, that is!).