Secretary Gates escorts Colombian Minister of Defense Juan Manuel Santos into the Pentagon. Secretary of Defense Robert M. Gates (right) escorts Colombian Minister of Defense Juan Manuel Santos through an honor cordon and into the Pentagon on July 23, 2008. Gates and Santos will hold talks on a range of security issues of mutual interest to both nations. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 754455-X-XBX74-060.jpg Photo Gallery