THOR3 A performance dietitian with the Tactical Human Optimization, Rapid Rehabilitation and Reconditioning Program, also known as THOR3, assigned to 10th Special Forces Group, conducts a skin fold test with a caliper to estimate body composition at Fort Carson, Colo., Oct. 2, 2017. Army photo by Staff Sgt. Daniel Wyatt SHARE: Download: Full Size (0.18 MB) Tags: Soldiers, Army Credit: Staff Sgt. Daniel Wyatt VIRIN: 171002-A-PN696-181.JPG Photo Gallery