Upon Perseus designing to come into Thessaly and there decide the war by a general engagement, as he probably would have done, Archon and his colleagues resolved to defend themselves against the suspicions and slanders that had been thrown upon them, by taking some practical steps. They therefore brought a decree before the Achaean congress, ordering an advance into Thessaly, with the full force of the league, to co-operate energetically with the Romans. The decree being confirmed, the Achaeans also voted that Archon should superintend the collection of the army and the necessary preparations for the expedition, and should also send envoys to the Consul in Thessaly, to communicate to him the decree of the Achaeans, and to ask when and where their army was to join him. Polybius and others were forthwith appointed, and strictly instructed that, if the Consul approved of the army joining him, they should at once send some messengers to communicate the fact, that they might not be too late on the field; and meanwhile, that Polybius himself should see that the whole army found provisions in the various cities through which it was to pass, and that the soldiers should have no lack of any necessaries. With these instructions the envoys started. The Achaeans also appointed Telocritus to conduct an embassy to Attalus, bearing the decree concerning the restoration of the honours of Eumenes. And as news arrived about the same time that king Ptolemy had just celebrated his anacleteria, the usual ceremony when the kings come of age, they voted to send some ambassadors to confirm the friendly relations existing between the league and the kingdom of Egypt, and thereupon appointed Alcithus and Pasiadas for this duty.