After these events, the Thracian front remained peaceful until 347 or early 346, when the Athenians again attempted to strengthen their presence in Thrace, which they probably did at the request of Cersebleptes. Macedon expelled the Athenian garrisons and defeated the Odrysians, preventing yet again a Thraco-Athenian alliance against him. As a result of this campaign Philip also put the Aeagean coast as far east as Acontisma (not the banks of the Nestos river as often assumed) under direct Macedonian administration.