These tensions peaked in 149/148 BC, when Achaea desired to fully assimilate Sparta into the league, which Rome opposed.
The first embassy, sent in the summer of 147 BC, adopted a belligerent tone, trying to announce the forced reduction of Achaea to its original, narrow grouping and sternly rebuking the League.
The sources do not describe a set-piece battle but instead a wild and chaotic rout, with the League's forces fleeing or getting killed or captured by the Romans.
[7] John Frost, in his 1831 History of Ancient and Modern Greece noted that after their defeat, some of the Greeks "slew themselves, others fled wildly from their dwellings, without knowing or thinking whither to bend their steps.
[5] The battle saw the League's main force destroyed at barely the outbreak of war; it ensured that the Romans would have an easy and swift campaign.