spares, and maintenance—combined with President Donald Trumps threats of trade wars with Europe, halted... As the Russian Su-57 stealth fighter jet enters serial production, the debate over how it ...

It was reported last month that the first Russian-made Sukhoi Su-35 (NATO reporting ... 35 was partly due to delays in the PAK FA program, which the Su-57 was developed to meet.

China’s J-20 stealth fighter, nicknamed “Mighty Dragon,” might have Soviet roots. -The J-20 shares striking design ...