In hopes of liberating Poland from the threat of Russia, Napoleon led his forces through Russia in attempts to engage with the Russian army. He greatly miscalculated the toll the Russian Winter would take on his unequipped troops, as 83% of the Grand Armée died due to lack of food, hypothermia, or battle, while the Russians only lost roughly 20% of their easily replaceable army. This campaign is often noted as a turning point in the Napoleonic Wars for being such a brutal defeat.