- Lead to greater state power, absolute monarchies, had to finance wars 
- Nationalism came with the french revolution
- Some States had their own armies, republics replaced monarchies.
- Growth of territorial integrity by raising the cost of conquering territory inhabited by those of other nations 
- It Lead to the German and Italian reunification 
- Issues of national self-determination in Austro-Hungarian empire 
- Eventually contributed to conflicts that embued both World Wars 
- Social evolution