As Chip Gagnon has extensively documented, a majority of the Serbs consistently opposed the wars of conquest and extermination waged in their name by their Communist leadership (http://www.ithaca.edu/gagnon/articles/book/index.htm).
On the other hand, as Greek journalist Takis Michas has revealed, the Greeks were overwhelmingly rooting for the mass murder of the Bosniaks, which they aided and abetted, as well as for the extermination attempt on the Kosovars.
Michas has also revealed that the Greek government had proposed to Milosevic to carve-up the Republic of Macedonia between Serbia and Greece in 1993, although the Slavic Macedonians are Orthodox Christians who speak a Bulgarian dialect, while there are almost no Serbs or Greeks in Macedonia. (http://www.tamu.edu/upress/BOOKS/2002/michas.htm).
Besides that, of course, the Greeks know almost nothing about the former Yugoslavia. Even worse, since they only believe their co-religionists tell them, their ignorance is compounded by a deep-seated delusion of knowledge.
Another feature of all those self-appointed "Orthodox defenders of Christianity" is that they hate the other Christians especially the Catholics even more than they hate the Muslims. When faced with a threat from both, the Russians chose to submit to the Muslim Tatars rather than the Catholic Poles; and in 1390 the Serbs voluntarily agreed to become vassals of the Ottomans as a protection against Catholic Hungary.
And it was as a faithful ally of Sultan Bâyezit that Stefan Lazarevic, the son of the Serbian knez Lazar killed at the Battle of Kosovo, ensured the defeat of the Christian crusade led by Sigismund of Luxemburg, King of Hungary, at the Battle of Nicopolis in 1396 (http://en.wikipedia.org/wiki/Battle_of_Nicopolis).
"Greek journalist Takis Michas"
Michas is a Euroweasel if ever there was one. We know his type as well here in the States as they do in Greece. He is a man obsessed with hatred of himself and his own country.
Russians did not want to submit to anyone. All they ever wanted is to free in their own land and they fought Tatars for freedom. For long centuries Russian were dying while Poles did nothing to help them. All that time Polish had just one aim wait in the shadows to fell on weakened Russia and take as much as possible.
Same happened with Serbs. While tens of thousands of Serb soldiers were dying on the Filed of Black Birds Hungarians and Christian crusades did nothing to help them. They attacked Serbia so what was left of Serb army had to rush north to defend Serbian borders. And that is kind of help Orthodox were getting from the Roman-Catholics for the last 7 centuries.
You also were telling untruths about 1390. Serbs did not voluntarily agree to become Ottoman vassals. Before Kosovo 1389, there were Bileca 1388, Plocnik 1386, Marica 1371 . Serbs were dying for long centuries defending Christianity and stopping Muslim onslaught and what they would get in return? Serbs for Montenegro would rise to help Venice and then Venice would sign separate peace and hand over Serbian refugees (women and children) to Turks. Basically you people have habit of ignoring, insulting or despising Orthodox, using them, lying to them, sending them to butcher block and then crying and squeaking when would refuse to be slaughtered.
So what happened in 1396 is that Christian crusaders passing trough Serbia did same what they did during many Rome inspired crusades against Bosnia. They pillaged, raped and killed bringing destruction and mayhem to peaceful land. That was wrong thing to do when that land is ruled by one of the best European knights Despot Stefan knight of the order of the Dragon. Serbs had the best European heavy cavalry of the time and they were extremely pissed off with the way your people presented your Christian values to them. Think of that next time when you contemplate attacking another Orthodox country.
Idea that Orthodox should bend knee to the roman pope is reason behind lots of miseries. It did not work before it wont work in the future.