Napoleon's most serious defeat was probably in Russia, when he tried to invade Russia to defeat their army. However, after waiting for a peace offering, he began to retreat, where he was attacked by the Russian army. That, combined with lack of food, and terrible cold, seriously weakened Napoleon's army and his reputation.
honestly the rise of socialism started with Russian revolution and the revolution would have never happened if the german emperor left Lenin in Switzerland.
Explanation:
when people saw that a revolution was possible than anything in that sense can happen in there country.
