Why is Japan keen on exercise with IAF Sukhoi fighters?

During the first '2+2' meeting involving the foreign and defence ministers of India and Japan in late 2019, the two nations agreed to hold a military exercise involving their fighter aircraft. It would have been the first such training venture between the two countries, which have held drills involving warships, land-based forces and transport aircraft of their air forces. The fighter exercise, proposed to be held in mid-2020.

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