Answer:
scholars have identified three types of cause of decolonization: metrocentric, peripheral, and international. In short, these involve causes in the imperial power, in the colonized territory, and in the wider world.
in my opinion peripheral would not be included on a basic level and you question states only 2 so i would think metrocentric and international.
Yes, it is indeed possible to own these three and you can apply for a copyright and people will not be able to reproduce and monetize their products with these art forms without your consent. Fair use laws could be upheld justly if the person using your art forms without your art forms was not exploiting them but generally criticizing them, making parodies, or using it for scholarly work.<span />
nationalism: it is great to have a sense on national pride and togetherness although 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 great IF there is an attack although it can be viewed as intimidating and scare off allies. also it can cause other resources to thin