CrossFit
KUNSAN AIR BASE, Republic of Korea -- Capt. Melissa Thurman, 8th Fighter Wing, and 1st Lt. Fiona Dailey, 8th Fighter Wing, flip a tire, while 1st Lt. Kari Kundert, 8th Operation Group, keeps watch for safety and proper form during a CrossFit workout July 27. CrossFit combines aerobic workouts with strength training to increase strength, flexibility, agility and endurance. (U.S. Air Force photo/Senior Airman Roy Lynch)