Political, historical and philosophical examination of the Atlantic Charter's doctrine of internal self-determination, pointing to Loewenstein's main thesis, -- that inherent in this doctrine is the denial of the right of intervention, which makes peace and world order impossible. His main postulates are these:- a country's internal government determines its foreign relations; political democracy and autocracy are the two basic forms of government; therefore two political systems, diametrically opposed to each other, could not co-exist in the same frame of international organization. On this reasoning, the author advocates political reconstruction focused on democratic government as the only responsible policy. He would outlaw the choice of an autocratic system. Scholarly, speculative as well as factual; controversial, within narrow limits of appreciation.