Flamininus is sent to negotiate with Antiochus III and warns him not to interfere with the Greek states. Antiochus does not accept that Flamininus has the authority to speak for the Greeks and only promises to leave Greece alone only if the Romans do the same.
Flamininus attempts to rally the Greeks against Antiochus III and to counter the pro-Seleucid policy of the Aetolians. When the Aetolians call on Antiochus III for aid, Flamininus persuades the Achaean League to declare war on both parties. He also prevents Philopoemen from taking Sparta.
In the mean time, the Spartan ruler, Nabis, moves to recover lost territory, including Gythium.