The Battle of Moscow title reminded me of an excellent documentary series about the eastern front called Soviet Storm. It was produced by Russians so it avoids any america/britain wank. The documentary gives a good idea of the immense struggle that the Soviets went through to repel the nazis. Some parts are truly heart wrenching.
https://youtube.com/playlist?list=PLwGzY25TNHPC_SsXFcIH-ba0nWuNbHOM6
Depends on when but I'm definitely interested