UNITED STATES ARMY WAR COLLEGE CARLISLE BARRACKS, PENNSYLVANIA OFFICE OF THE COMMANDANT 12 April 1957 Dear Professor von Mises: I am very sorry to learn that you will be unable to attend the National Strategy Seminar to be held at the College, 11-14 June 1957. I know that both the College and our other distinguished guests will regret not hearing your views and experiencing the stimulus of your presence. However, we must recognize that, given your many responsibilities, you must decline some invita- tions. We appreciate the consideration you have given ours. We shall hope for better fortune another time. Sincerely, Martin MAX S. JOHNSON Major General United States Army Commandant Professor Ludwig von Mises Professor of International Economics New York University 777 West End Avenue New York 25, New York