Staff Sgt. Donald Pearl, right, explosive ordnance disposal technician, 22d Chemical Battalion (TE), demonstrates EOD equipment and answers questions for Gen. Sung Chool Lee, deputy commander, Combined Forces Command - Korea, during the general's visit to the 20th Support Command (CBRNE) headquarters on Aberdeen Proving Ground May 4. The general's translator, 1st Lt. Inbok Rhee, center and Lt. Col. Matt Mingus, commander, 22d Chemical Battalion (TE) look on. Lee's visit was prompted by the 20th Support Command's performance during Operation Key Resolve 2009 in Korea where the command headquartered the Joint Task Force for the Elimination of Weapons of Mass Destruction.