what i do when im not the KH, since i dont like seeing them wiped out early on, i send a diplomat to southern greece. Then i FD Makedonians giving me Athenai sometimes Chalkis with accept or we will attack. Once i have those i destroy Makedonian governments and barracks, then i FD KH recieving these settlements for map info. If they keep retaking the settlements, try add_money greek_cities x. x being the amount you want, becareful doing this though, may flip the tide of the war completely around.