Israel will continue maintaining Colombia’s Kfir fighter jets for 19 months, despite the breakdown of diplomatic and military relations. Later it was claimed Israel sold Lavi technology to China, where the technology was allegedly used in China’s J-10 program. Any domestic stealth fighter or UCAV would require a propulsion system from Europe or the United States​, with the US most likely a supplier. F​uture of an Israeli stealth and UCAV projectUltimately, Israel lacks the resources, manufacturing depth, and financing to simultaneously develop a domestic stealth fighter and a new UCAV from scratch. Odds are Israel will not build a stealth fighter from the ground up, and may rethink a UCAV to suit its requirements and cost impact.