Need to Know Deputy Defense Secretary Patrick Shanahan says new generations of Americans need to know of the grit and courage of America’s Vietnam veterans. Shanahan spoke at the Pentagon’s Vietnam War Commemoration. DoD photo by Jim Garamone SHARE IMAGE: Download Image: Full Size (0.25 MB) Tags: Deputy Defense Secretary Pat Shanahan Photo By: Jim Garamone VIRIN: 171017-D-FN314-001.JPG Photo Gallery