Thailand could not be isolation state but it depend on the developed countries or proficiency in determine economic style. Especially, capitalism system to be a free market that provides opportunities for operators to freely engage in profit seeking and the country is free to protect its interests. So Thailand could not avoid the intervention from superpowers. Foreign policy would be the importance strategy to prevent the domination of superpowers. How should Thai determine the role in international stage? And Thai should adapt or not with all situation to happen in Southeast Asia.