At Attention Defense Secretary James N. Mattis and Colombian Defense Minister Guillermo Botero stand at attention during the secretary's visit to Bogota, Colombia, Aug. 17, 2018. U.S. Embassy photo SHARE IMAGE: Download Image: Full Size (0.28 MB) Tags: James N. Mattis, SecDef, Southern Command, Southcom Photo By: U.S. Embassy photo VIRIN: 180817-D-ZZ999-006.JPG Photo Gallery