german officers. >> churchill is already feeling very put upon, he is already feeling that the moral authority of the british empire had been undermined and that this talk of mass executions was a crime against humanity. he was deeply offended and i think it was a very vulnerable moment for the alliance. >> churchill storms out of the dinner at this point and he has to be carefully brought back in by stalin, molotov came out to them and said to him it's all right we were only joking. >> whether stalin was joking or not, churchill understood in the short term, civilizations face depended on an agreement by the three men to go forward togeth together. >> the tehran conference closed with the three men signing the declaration of the three powers, which laid out their dedication to winning the war and to launch