Hagel: U.S. Committed to Singapore Relationship 12 Dec 2013 Claudette Roulo, American Forces Press Service
"...Yesterday, Ng visited the Republic of Singapore Air Force's Peace Carvin II F-16 Fighting Falcon training detachment at Luke Air Force Base in Arizona, which was celebrating its 20th anniversary. The detachment also held an integrated live-fire exercise as part of the annual Forging Sabre exercise, and U.S. Marines demonstrated the F-35B Lightning II joint strike fighter aircraft, Ng said....
...Singapore is “seriously looking” at replacing its F-16 fleet with the F-35B, Ng said. But, he continued, “We're in no particular hurry, because our F-16s are still very operational, and they're due for upgrades. But it is a serious consideration.”"
Defense.gov News Article: Hagel: U.S. Committed to Singapore Relationship