Answer:
Nationalism was a great cause of World War one because of countries being greedy and not negotiating. Nationalism shows you are proud of your country and want it to be the best. A lot of causes all linked back to countries all wanted to be better than each other.
Explanation:
The answer is Fort Orange
This means that WW2 caused many things to be the way they are today, such as the racisim, the invisible line of subtle seperation between races and religions, etc.