U.S. Air Force Lt. Gen. Kenneth Wilsbach, 7th AF commander, speaks with Master Sgt. Thomas Zemanik, 51st Civil Engineer Squadron pavements and equipment flight (Dirt Boyz) noncommissioned officer in charge during an immersion tour at Osan Air Base, Republic of Korea, Jan. 11, 2019. The Dirt Boyz showcased their technique for repairing damaged areas of a flightline in a process called Rapid Airfield Damage Repair. (U.S. Air Force photo by Senior Airman Kelsey Tucker)