Well, isolationist policies are not really possible for small countries, they can't possibly make everything they need. Having bigger countries depend on each o

Well, isolationist policies are not really possible for small countries, they can't possibly make everything they need. Having bigger countries depend on each other is also the opportunity to somewhat teach them diplomacy; otherwise they would have an even worse behavior towards small countries. Imagine China or the US without any need for an external country, their behavior as citizens of the world would be 10 times worse.