The Application of Moral Ideals in Foreign Relations of Countries: Peace or War?

Is there any claim in world politics which my method and behavior in political life is not moral? Every body and every country, considers that its acts and conducts are moral. Now, there is an important question: What will be happen if officials of every country try to considering the belonging ideals are the best and perfect more than the same of other countrie's believes? For example, all of the political slogans such as consolidation of global socialism, protecting of nation's acts for national freedom and social progress, effort for achieving the ideals of Arabic and Islamic Ommah, announcement to solidarity with struggling nations in the way of economic and political freedom, quarrelling with discriminations, and having the deep sensation for promoting the democratic ideals, are valid and moral. Now there is a paradoxical situation, because if every country wants and tries to promoting and performing its specific political ideal in the world politics and in the international society, without any tolerations expediencies, and flexibilities, it seems that a moral ideal will convert to unethical and immoral ones. What is the main conclusion? War instead of peace.