Major religion groups:
Russia- Orthodox Christianity
The Czech Republic- Atheist or Agnostic
Poland- Roman Catholics
Hungary- Christianity
Romania- Eastern Orthodox
Moldova- Eastern Orthodox
Croatia- Roman Catholic
Lithuania- Roman Catholic
Latvia- Lutheranism
Estonia- Evangelical Lutheranism
Slovenia- Roman Catholicism
Slovakia- Roman Catholicism
Bulgaria- Bulgarian Orthodox
Ukraine- Greek Catholic Church
Belarus- Orthodox Christianity
Serbia- Eastern Orthodoxy
Montenegro- Orthodox Christianity
Bosnia- Roman Catholic
Herzegovina- Orthodox
Albania- Muslims
Kosovo- Muslim
Macedonia- Orthodox Christianity
The Czech Republic- Atheist or Agnostic
Poland- Roman Catholics
Hungary- Christianity
Romania- Eastern Orthodox
Moldova- Eastern Orthodox
Croatia- Roman Catholic
Lithuania- Roman Catholic
Latvia- Lutheranism
Estonia- Evangelical Lutheranism
Slovenia- Roman Catholicism
Slovakia- Roman Catholicism
Bulgaria- Bulgarian Orthodox
Ukraine- Greek Catholic Church
Belarus- Orthodox Christianity
Serbia- Eastern Orthodoxy
Montenegro- Orthodox Christianity
Bosnia- Roman Catholic
Herzegovina- Orthodox
Albania- Muslims
Kosovo- Muslim
Macedonia- Orthodox Christianity
Percentage of ethnic groups in Eastern Europe:
According to this pie chart you can see which religion is striving in eastern Europe the most. You can also see which religions that are very small in followers. You can see that Christianity, whether its Orthodox Chrisitanity or Roman Catholic, it is the most popular.
Eastern Orthodox is spread everywhere along eastern Europe, Roman Catholic is also very spread out. Muslim instead is at the south becasue its closer to the Middle East. At the moment their have been ethnic and religious conflicts that have been threatening Europe's stability. This is due to a bridge in Sarajevo, Bosnia, and Herzegovina, "tearful family reunions testify to the new divisions of Europe". The confilct is that some religions want the bridge up becasue its a symbol for them, other religions want it teared down.