The Napoleonic Wars

I mean Russia was able to defeat Napoleon at the end so technically there should be Russia showing a uno reverse card.

Russia itself didn't defeat Napoleon. The winter did and when the others saw Napoleon was weak they went in for the kill and even though he was defeated he was able to delay the Austrian and Prussian armies for quite a long time.

so basically Russia was the biggest help you're not telling me why Russia didn't do it. because after the winter the Russians pushed the French back until their border where other yes, butted in.

hmmmm i think about that