The Buddha said, whatever evil thing you have done to other, the evil result will always come back to you. The western countries have created chaos and civil wars in middle east and other parts of the world. As a consequence, chaos and civil war will break out in western countries in the future. What you have planted, is what you're gonna havest. This is the law of karma according to Buddha. The law of karma is like any other laws in the universe, whether you believe it or not, they will never stop working .