What troubles faced by napoleons and is army during the invasion of russia?

During Napoleon's invasion of Russia in 1812, his army faced severe logistical challenges, including inadequate supplies and harsh winter conditions. The vast distances and scorched earth tactics employed by the Russians further strained his forces, leading to food shortages and diminished morale. Additionally, the extreme cold and lack of proper winter gear resulted in significant casualties, weakening his army considerably. Ultimately, these troubles contributed to the disastrous retreat from Moscow, marking a turning point in the Napoleonic Wars.