Eastern Orthodox–Catholic conflicts

armed expedition against Constantinople

Ruthenian Catholic archbishop, martyr and saint

conflict between the Republic of Novgorod and medieval Sweden

Genocide by the Ustashe during WWII

thumb|260 px|Monument of Gonta and Zalizniak in Uman, Ukraine The Koliivshchyna (; ) was a major haidamaky rebellion that broke out in Right-bank Ukraine in June 1768, caused by the dissatisfaction of peasants with the treatment of Orthodox Christians by the Bar Confederation and serfdom, as well as by hostility of Cossacks and peasants to the local Polonized Ruthenian nobility and ethnic Poles. The uprising was accompanied by pogroms against both real and imagined supporters of the Bar Confederation, particularly ethnic Poles, Jews, Roman Catholics, and especially Byzantine Catholic priests a

group of humans

Russian Orthodox Christian bishop

a problem arising when multiple people claim the title of emperor

conflicts following the Fourth Crusade

Saint Orthodox Martrys who died in Jasenovac Concentration Camp