Captain Andy Hertel (ret.) served over 29 years in the US Navy as a Submarine Officer and Nuclear Engineer. His sea tours include Commanding Officer of the submarine USS Texas (SSN 775), Executive Officer on USS North Carolina (SSN 777), department head on USS Greeneville (SSN 772), and junior officer on USS Tennessee (SSBN 734), and served as senior staff of Seventh Fleet based in Yokosuka, Japan. He holds a BS from the University of Illinois and MBA from Troy University, and is currently Professor of the Practice in National Security at the Sanford School of Public Policy at Duke.