Airmen with the 437th Communications Squadron pace themselves beside vehicles traveling at reduced speeds along Hill Boulevard during the Commander's 5K Run/Walk Challenge here July 10. (U.S. Air Force photo/Staff Sgt. Daniel Bowles)

A group of runners speed ahead toward the finish line during the Commander's 5K Run/Walk Challenge here July 10. A base fitness challenge is normally held the first Friday of each month, promoting a fit-to-fight force at Charleston AFB. (U.S. Air Force photo/Laurie Ladd)

Airmen walk along Hill Boulevard at the start of the Commander's 5K Run/Walk Challenge here July 10. Airmen from various squadrons across Charleston AFB participated in the fitness challenge, some bringing along their children and pets to enjoy the event. (U.S. Air Force photo/Laurie Ladd)

Airmen from the 437th Logistics Readiness Squadron stick together during the final leg of the Commander's 5K Run/Walk Challenge held here July 10. More than 450 people from around the base came out to participate in the monthly challenge. (U.S. Air Force photo/Staff Sgt. Daniel Bowles)

Tech. Sgt. Raymond Pomeroy, left, Staff Sgt. Chris Ferrell and Staff Sgt. Kurt Ziobro, right, take a break to hydrate after running in the Commander's 5K Run/Walk Challenge here July 10 laden with 30 to 40 pound rucksacks. They have been training with their rucksacks for approximately two months to prepare for upcoming deployments to austere locations in the Middle East. The Airmen are with the 437th Civil Engineer Squadron explosives ordnance disposal flight. (U.S. Air Force photo/Staff Sgt. Daniel Bowles)

Airmen keep their eyes on the prize as they approach the final stretch during the Commander's 5K Run/Walk Challenge here July 10. Airmen from across Charleston AFB participated in the morning fitness challenge, testing their speed along the 5K course. The next challenge is scheduled for Aug. 7 and planned to be hosted by the 437th Mission Support Group. (U.S. Air Force photo/Staff Sgt. Daniel Bowles)

Airmen participating in the Commander's 5K Run/Walk Challenge spread out as they cross East Jackson Drive here July 10. Participants of the fitness challenge ran or walked a 5K course along Hill Boulevard, Bates Street, Davis Drive, James Avenue and Jackson Drive. (U.S. Air Force photo/Staff Sgt. Daniel Bowles)