There is a difference between Greece and Serbia however. A goodly number of Greeks may have heavy nationalist sympathies, but there are different forms of leadership in place. Sentiment does not rule over action, especially when you consider that Greeks are expert at presenting a double-face to the international community. How does a country that is seemingly anti-American support a government that does everything it can not to fall out favor with Americans? How does a pro-Serb government allow American military weaponry to use Saloniki as a port of entry for a military battle with Serbs?

Are Greeks schizophrenic?

The bit about Turkey and Christians I will have to disagree with since Greeks were not the only ones displaced from Turkey at the time. Armenians, Assyrians and other Christians were also removed, and the statements of the Young Turks between 1915 and 1921 openly targeted Christians rather than referring to them as ethnic groups.