Napoleon's rule in Europe had a significant impact, as he spread revolutionary ideals of liberty, equality, and fraternity across the continent while also establishing a more centralized and efficient government. His conquests and reforms prompted the rise of nationalist movements, as conquered territories sought self-determination. The Napoleonic Code codified laws that influenced modern legal systems. However, his aggressive expansion ultimately led to widespread conflict and his downfall, culminating in the Congress of Vienna, which aimed to restore balance in Europe. Napoleon's legacy profoundly shaped European governance and national identity.