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As most people here probably know, the War of the 6th Coalition was the last great Coalition War, the Hundred-Days having had no chance to succeed. It was also the war which ended the ambitions of the Napoleonic Empire.
It is generally separated in three campaigns :
-1812, the Campaign of Russia, with the battles of Borodino, Smolensk and the Berezina.
-1813, the Campaign of Germany, culminating in the Battle of Leipzig,
-1814, the Campaign of France, which was basically mop-up.

There are a number of PODs related to this Napoleonic War which could turn the tide, of which I will call attention on three :
- WI : French victory at Lepizig? This can be declined in whether it's a simple tactic victory, a decisive victory, or a victory achieved by the inadvertent killing of the enemy leaders (which almost happened IOTL)
- WI : French troops do capture Riga? The French didn't make a simple thrust for Moscow, but also wanted to make a similar thrust towards the North and St Petersburg. However, Riga didn't fall, and a French corps was twice stopped on the Neva river before reaching the capital of the Russian Empire.
- WI : Moscow doesn't burn.
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