Because they have no victories to celebrate.
The Ottoman Turks.
Sacre Coeur monument
In 1069. It was actually his general, Philaretos Brachamios, who was defeated. Due to his defeat, Romanus IV did not do any fighting because the campaign was lost before he got actually involved.
Yes it was. It was a principality, meaning it was ruled by a prince or princess. It lasted into the 1400s, when it was taken over by the Ottoman Turks. After the Ottoman defeat in and dismantling after World War I, the land that was Transyvania was given to Romania.
In 1863 the Confederate troops surrendered in Vicksburg. The Union gained control of the Mississippi River and divided the Confederacy in half. To celebrate the 4th would have been to celebrate the defeat of the city and of the South. It took about 80 years for those who had lived through the surrender to pass on.
Of course, Muslim Turks celebrate Ramadan.
Croat, Serbs, Turks
Most Turks are Muslim, and do not celebrate Christmas.
Because turks believe in islam. Christmas celebrates the birth of christ. christians are deemed the followers of christ Turks believe in allah and are followers of Muhammad so they do not celebrate Christmas
Jerusalem
The Ottoman Turks.
After defeating the Turks together with the Serbs in the 1878 war, Austria annexed Bosnia and Herzegowina. This did not sit well with the Serbs, who had expected to build a "Greater Serbia", including the countries that Austria had now kept for themselves. After that and moreover, the Serbs were often treated as second-class citizens within the Austrian Empire, the German Austrians and the Magyars of Hungary being the dominant groups. The murder of Franz Ferdinand was plotted by a group of Serbian activists who saw his visit to Serajewo on the very commemoration date of the defeat of the Turks by the Serbs as a provocation. It is ironic that of all the people in power in the Austrian Empire, Franz Ferdinand probably was most in favor of more political rights and a form of autonomy for the Serbs. After his murder, the Austrians issued an ultimatum to the Serbian republic that unless they agreed to an Austrian inquiry on Serbian soil (with the Austrians to have unlimited powers) Serbia would be invaded by Austria.
Alexios I Komnenos, Emperor of the Byzantine Empire, called upon Western European Christians to help him defeat the Seljuk Turks in what eventually became the First Crusade.
human rights violations
You need to be more specific as the Turkish Empire is over 500 years old
The honest answer is that nobody has ever settled the Eastern Question; the Israelis and the Palestinians are still fighting, not to mention the Iraqis, the Taleban, the Turks, The Serbs etc.
Pope Urban II (1088-1099) called for the Christians to defeat the Turks. This is known as the first crusade and the war for the liberation of the Holy Land.