China's J-20 fleet grows; India AMCA, Russia Su-57 respond

China's J-20 fleet has reportedly crossed 500 operational aircraft, more than double earlier estimates.

Satellite imagery shows at least 14 J-20s at Shigatse air base in Tibet, 150 km from India's Sikkim border.

India's AMCA stealth fighter is not expected to enter service until 2035.

India may consider Russia's Su-57 as a potential option to close the stealth gap.