“Security consciousness in OPD [Operations Division of the General Staff, United States Army] was so well established by the end of the war that the author and associate historians, though explicitly authorized by the Chief of Staff and the OPD chief to see all War Department files, had many administrative battles with the executive office and the record room before officers in charge became convinced that the chief of OPD had really meant that anyone, particularly a civilian, should see everything in Division files. While the historians found most of the staff members extremely co-operative, the policy of tight security was very strong.” – Ray S. Cline, Washington Command Post: The Operations Division, United States Army in World War Two