Terms of Service and Privacy PolicySingapore has started exploring whether to become involved in the Global Combat Air Program (GCAP), a new report suggests. Richard P. EbensbergerGCAP is a joint next-generation air combat program led by the United Kingdom, Japan, and Italy, aiming to field the Tempest sixth-generation combat jet and wider air combat system by around 2035. With the demise of the pan-European Future Combat Air System (FCAS), GCAP is the preeminent Western sixth-generation fighter effort outside of the United States. Two Republic of Singapore Air Force F-16s fly alongside a Washington Air National Guard KC-135 Stratotanker during Cope Tiger 2024, Korat Royal Thai Air Base, Thailand, in 2024. A Republic of Singapore Air Force F-15SG.