 He was also involved in the 2002 operation that killed Abu Sayyaf spokesperson Abu Sabaya.In 2000 Querubin, now a Lieutenant Colonel, was conferred the Armed Forces of the Philippines' highest honor, the Medal of Valor for leading a military operation against 300 Moro Islamic Liberation Front fighters in Lanao del Norte.LIEUTENANT COLONEL ARIEL O QUERUBIN 0-7901 Philippine Navy (Marines)(GSC)
"For acts of conspicuous courage, gallantry and intrepidity above and beyond the call of duty as Commanding Officer, Marine Battalion Landing Team-1, Philippine Marine Corps, Philippine Navy during a 24-hour firefight against an estimated 300 fully armed men belonging to the separatists Moro Islamic Liberation Front at Bgy Inudaran, Kauswagan, Lanao del Norte from 18 to 19 March 2000.