evidence: In addition to that, Napoleon had to rethink his strategy and decided against mobilizing his army to capture St. Petersburg. His men simply did not have the energy to journey north, let alone a potential onslaught by Kutuzov’s forces. [...] As for Kutuzov’s army, it managed to cut off supplies to the Grand Armée, turning its retreat into complete hell. With little to eat and severely unprepared for the winter, Napoleon's forces drew back all the way to Paris suffering heavy losses along the way. Napoleon was just a human after all.