There is also another way: building a nuclear weapons/ICBM arsenal. That's why there's always the topic of nuclear non proliferation among countries that alread

There is also another way: building a nuclear weapons/ICBM arsenal. That's why there's always the topic of nuclear non proliferation among countries that already have this capability. But if Ukraine had nukes, it wouldn't have been invaded by Russia. Just like how Noth Korea isn't going to be invaded by anyone anytime soon.