 Complete the following phrase:  In the summer and fall of 1943, realising the war was lost, Papen attended secret meetings with the agents of the US Office of Strategic Services OSS in Istanbul. Papen exaggerated his power in Germany to the OSS, and asked for US support to make him dictator of a post-Hitler Germany. US President Franklin D. Roosevelt rejected the offer when he heard of it and told the OSS to stop talking to Papen. From October 1943, Papen and the German embassy gained access to the Cicero documents of secret agent Elyesa Bazna, including information on Operation Overlord and the 