In a few cases deliberate duplicity is alleged , whereby secret agreements or intentions are claimed to have existed in conflict with understandings given publicly . An example is Winston Churchill 's covert concordance with the USSR that the Atlantic Charter did not apply to the Baltic states . Given the strategic requirements of winning the war , British Prime Minister Churchill and U.S. President Franklin D. Roosevelt had no option but to accept the demands of their erstwhile ally , Soviet Premier Joseph Stalin , at Tehran , Yalta , and Potsdam conferences , argues retired diplomat Charles G. Stefan
Potsdam
Potsdam Conference
Western betrayal