On the Fact that Charles the 12th, Napoleon, and Hitler All Experienced Initial Success In Their Respective Wars Against Russia but Instead of Declaring Victory and Holding-Fort, They Went for the Entire Enchilada and Ended Up Getting Routed

Yes, I get it, when you have your enemy on the run the natural inclination is to go in for the finish............but we're talking Russia here, amigos. It's cold, it's big, and it has an unlimited number of bodies that it can throw into the grinder. Couple this with the harsh fact that Russia has an affinity for scorched-earth policies and you're looking at disaster, flat out. Just don't do it, I say (not that anyone would these days, mind you, them having a nuclear arsenal and all).