How can one religion be practiced differently by similar cultures in the same geographic area?

Trench warfare began after germany failed in its initial plan to seize france and bring a quick end to the war. negotiate a temporary truce with the allied forces. attack the allies by sea with its powerful navy. storm across the eastern front to attack russia.

Where were the trials to review evidence in cases against high-ranking nazi officials accused of war crimes held?

How did the beliefs of the roman catholics differ from the eastern orthodox form of christianity?