The Battle Over The History Of Ukraine

What people believe about the past has become an important issue in Ukraine.  In particular, the Ukraine famine in the 1930's, and collaboration with Nazi's during WW ll,  is undergoing revision in separatist controlled regions of Ukraine.  It has reduced the focus on Ukraine nationalism, and it has aligned the region with Russia, while it remains critical of the Soviet Era under Stalin.  I am not an historian, and I am not very familiar with the historical relationship between Ukraine and its Eastern neighbor.  History is often written to serve political purposes.  It has to be revised when politics change.