Found these great videos on the battle lines of the eastern front. You see how the fall happens in hindsight while keeping on mind that was a lot of manpower on both sides that never gets discussed much.
What did World War 1 Imperial Germany do different than World War 2 Germany that led to their defenses failing massively.
What did World War 1 Imperial Germany do different than World War 2 Germany that led to their defenses failing massively.