Napolèonic code was put in effect in all places conquered by France
As Napoleon went around conquering, the people within his secured borders started getting increased feelings of nationalism ( love and motivation of one's country) for their home country not France
The opponents of napoleon's armies grew stronger 💪
The almighty napoleon gathered 600,000 soldiers to march east into Russia.
As Napoleon pushed Russia defenders back, they used a scorch- earth policy ( burning everything the Grand Army could possibly use) to decrease their resources
Napoleon seized Moscow, but was losing soldiers rapidly due to the harsh winters and lack of resources, so he ordered a retreat in October 1812
Russian armies followed the retreat and began invading France
Basically, the allies of France took advantage of napoleon's loss in Russia and broke their Alliances to destroy France {#Backstab 😧}
In 1813 Napoleon's army fought these allied traitors and were defeated. This lead to the capturing of Paris in March 1814
Soon the allies held complete control of France , and allowed napoleon to escape to an island near Italy in exchange for the Thrown of France. Louis xviii became king of France.