Opposite to him encamped the Roman army reinforced by new arrivals of troops, and commanded first by the consul of the previous year, Publius Villius, and then from the summer of 556 by that year's consul, Titus Quinctius Flamininus.

Flamininus, a talented man just thirty years of age, belonged to the younger generation who began to lay aside the patriotism as well as the habits of their forefathers and, though not unmindful of their fatherland, were still more mindful of themselves and of Hellenism.

A skilful officer and a better diplomatist, he was in many respects admirably adapted for the management of the troubled affairs of Greece.

Yet it would perhaps have been better both for Rome and for Greece, if the choice had fallen on one less full of Hellenic sympathies, and if the general despatched thither had been a man, who would neither have been bribed by delicate flattery nor stung by pungent sarcasm; who would not amidst literary and artistic reminiscences have overlooked the pitiful condition of the constitutions of the Hellenic states; and who, while treating Hellas according to its deserts, would have spared the Romans the trouble of striving after unattainable ideals.
The new commander-in-chief immediately had a conference with the king, while the two armies lay face to face inactive.

Philip made proposals of peace; he offered to restore all his own conquests, and to submit to an equitable arbitration regarding the damage inflicted on the Greek cities; but the negotiations broke down, when he was asked to give up ancient possessions of Macedonia and particularly Thessaly.
For forty days the two armies lay in the narrow pass of the Aous; Philip would not retire, and Flamininus could not make up his mind whether he should order an assault, or leave the king alone and reattempt the expedition of the previous year.