Butler Actor Gerard Butler and Navy Vice Adm. Fritz Roegge, current president of the National Defense University, speak about the movie “Hunter Killer” during a Pentagon news conference, Oct. 15, 2018. DOD photo by Jim Garamone SHARE IMAGE: Download Image: Full Size (1.01 MB) Tags: National Defense University Photo By: DOD VIRIN: 181015-D-FN314-001.JPG Photo Gallery