Quote Originally Posted by antisocialmunky View Post
Correct me because I'm probably wrong but the Macedonians had a fairly professional army after the reforms of Phillip to the late Hellenistic Period in Macedonia didn't they? Professional as in uniformly trained, cosntantly standing, and state equipped.
The Macedonian army led by Antigonos against Kleomenes in the campaign which concluded at Sellasia (222 BC) was not a standing army. Polybios writes (2.54-5):

By this time winter was approaching, and Antigonus travelled to Aegium to attend the assembly of the Achaean League. He dismissed his Macedonian troops to allow them to winter at home, but himself remained in the Peloponnese, to discuss the present situation with the Achaeans and concert plans for the future.

At the same time Cleomenes had noted that Antigonus had dismissed his Macedonian troops, and kept only his mercenaries under arms while he spent his time at Aegium,...

It makes no sense to dismiss professional troops from a battle zone (a situation which Kleomenes took advantage of) so we must conclude that Antigonos' "Macedonians" (in contrast to his "mercenaries") were not professionals, and needed to return home to bring in the harvest.