Lt. Col. Joseph Earp, 103rd Expeditionary Sustainment Command, performs the tire walk during the Deep Sea Dive challenge at Kuwait Naval Base, Kuwait, Nov. 9, 2019. The Deep Sea Dive challenge consists of eight events in the following order: ruck march, tire flips, tank-track drag, tire walk, burpees, row, swim, and run. (U.S. Army Reserve photo by Spc. Dakota Vanidestine)