In 348 BC, Philip conquered Olynthus and razed it to the ground; then conquered the entire Chalcidice and all the states of the Chalcidic federation that Olynthus had once led.* E. M. Burke, "The Early Political Speeches of Demosthenes", 187.</ref> After these Macedonian victories, Athens sued for peace with Macedon. Demosthenes was among those who favoured compromise. In 347 BC, an Athenian delegation, comprising Demosthenes, Aeschines and Philocrates, was officially sent to Pella to negotiate a peace treaty. In his first encounter with Philip, Demosthenes is said to have collapsed from fright.* D. M. MacDowell, "Demosthenes the Orator", ch. 12.</ref>