In the subsequent Battle of the Aous, Flamininus was victorious despite the advantage the terrain gave to the Macedonian army, when he was shown a pass through the mountains which allowed him to send a force to attack the Macedonians from the rear. The Macedonian force collapsed and fled, suffering 2,000 casualties. Philip was able to gather up the survivors and retreat to Thessaly. There he destroyed the city of Tricca to prevent it falling into Roman hands and withdrew to Tempe.