Claes H. Lewenhaupt is a descendant of S.C. Hastings and a lifetime member of the Board. He is a graduate of Hastings, a member of the California Bar and the Senior Government Ethics Counsel in the Office of the General Counsel with the Defense Logistics Agency in Virginia. Col. Lewenhaupt retired in September 2017 from the U.S. Army Judge Advocate General’s (JAG) Corps after 27 years. Col. Lewenhaupt served all over the world from Germany, to Hawaii, to Afghanistan, holding numerous positions of leadership and responsibility. He spent the first half of his Army career litigating as a prosecutor and a criminal defense attorney, with four years defending the Army in federal court specializing in medical malpractice and civilian employment law. He has spent the latter half of his career focused on national security law, serving at the U.S. Central Command, the Defense Intelligence Agency, the Office of the Director of National Intelligence and the U.S. Army Intelligence and Security Command.