What are the advantages and disadvantages of nationalism and military preparedness first one to answer will get 100pts

I'd think that one advantage of nationalism is the unity it builds among people who share the same nation, who start to think of each other as co-cit

Explanation:

One disadvantage of nationalism is the hate can be directed against outsiders

Nationalism: it is great to have a sense on national pride and togetherness however, if it gets out of hand it can be almost brainwashing and used to control citizens.

Militarism: being prepared and having sufficient miliatry resources avalivable can be fantastic IF there is an attack but it can be viewed as intimidating and scare off allies. In addition, it can cause other resources to thin.