PETTY Officer 2nd Class Ken W. Shade, left, and PETTY Officer 1ST Class Russ Leinbach, Seabees from Naval Mobile Construction Battalion 133 (NMCB-133), examine a motorized roller left behind at an airfield by Iraqi workers. The airfield, which had been under construction prior to the start of the Persian Gulf war, is being repaired to allow relief supplies to be flown in for nearby Kurdish refugees as part of Operation Provide Comfort