Russia was scared to fly its Su-57 in combat, fearing a loss. Ukraine scored a hit on one anyway.

• Russia has largely kept its Su-57 fighter jets out of the war in Ukraine, fearing a combat loss.
• But on Saturday, Ukrainian forces struck one of the aircraft hundreds of miles from the battlefield.
• It marked the first-ever hit on Russia's much-celebrated fighter.

Russia has tried to keep its very limited number of Su-57 fighter jets hidden from the war in Ukraine, fearing that a combat loss would be a blow to the aircraft's reputation, according to Western intelligence and aviation experts.