Conversation so far:
What is the major religion of Ukrainians?
A 2016 survey conducted by the Razumkov Centre found that majority of Ukrainian populations was adhering to Christianity (81.9%).
Do Ukrainians practice other religions as well?
As of 2016, 16.3% does not claim a religious affiliation, 1.7% adheres to other religions.

Question: What do Orthodox Christians believe?
Self-contained rewrite: What do Orthodox Christians believe?