Answer: Russia
Notes: Russia has proposed a partnership with India for joint production of the Su-57 fighter jet at HAL. The collaboration aims to localize fifth-generation fighter aircraft (FGFA) technology. The Su-57 is a fifth-generation stealth fighter developed by Russia’s United Aircraft Corporation (UAC). It is designed for both air superiority and ground attack roles. The aircraft features advanced stealth, agility, and multi-role combat capabilities. The Su-57 was primarily developed for the Russian Air Force.
