Perhaps I should have been more precise. You're absolutely right about being apologetic for the atrocities committed.
I was referring to trying to justify Soviet Union's attacks on Poland and Finland as well as annexation of parts of Romania. E.g.'The Soviet Union was prepared to allow other nations to fight one another so that it could have a share of the spoils'. It was not 'other nations' fighting and Soviet-German alliance provided room for Soviet expansionism.