They won. The Germans lost. What else is victory? Yes the Russians lots the most people in the war. Which seems like it only adds to "the Russians won the war".

They won. The Germans lost. What else is victory? Yes the Russians lots the most people in the war. Which seems like it only adds to "the Russians won the war". They sacrificed the most to do it. Maybe the problem is the word "won". In this case it's not "won" as in "to receive a prize". It's "won" as in "causing the defeat of the enemy".