US Air Force (USAF) STAFF Sergeant (SSGT) Edward Brooks (left), and USAF AIRMAN First Class (A1C) Nathan Laidlow, 819/219th Expeditionary Rapid Engineer Deployable Heavy Operational Repair Squadron Engineers (RED HORSE), weld a new section of steel casing at a forward-deployed location in support of Operation ENDURING FREEDOM. The casing will allow drainage of water under a runway