That doesn't work in the real world where the remaining 10% of countries are willing to use their superior military technology to dominate others.
The only way for a country to be truly free is to be either equal in power to other countries - or barring that, the most powerful country on the block. Since the former is impossible due to the nature of reality, all countries aim for the latter.
In practice that top 10% is generally the one holding itself accountable to arms treaties, it's normally smaller groups that go for the cheap-and-horrible.
The only way for a country to be truly free is to be either equal in power to other countries - or barring that, the most powerful country on the block. Since the former is impossible due to the nature of reality, all countries aim for the latter.