From this moment until 341 BC, all of Demosthenes' speeches referred to the same issue, the struggle against Philip. In 349 BC, Philip attacked Olynthus, an ally of Athens. In the three "Olynthiacs", Demosthenes criticised his compatriots for being idle and urged Athens to help Olynthus.* E. M. Burke, "The Early Political Speeches of Demosthenes", 185.</ref> He also insulted Philip by calling him a "barbarian". Despite Demosthenes' strong advocacy, the Athenians would not manage to prevent the falling of the city to the Macedonians. Almost simultaneously, probably on Eubulus' recommendation, they engaged in a war in Euboea against Philip, which ended in a stalemate.* E. M. Burke, "The Early Political Speeches of Demosthenes", 185–187.</ref>