The Sukhoi Su-57 completed combat operations over Ukraine

The Russian Air Force has reportedly used four of its new Sukhoi Su-57, fifth-generation fighter jets, to carry out attacks against Ukrainian air defense system

SU-57: Why Russia is not using its most advanced aircraft over Ukraine

Sukhoi Su-57 – A significant boost to Russian air combat capabilities

Inside Russia's Failure To Control Ukrainian Airspace

Su-57 Felon — Key Publishing Ltd

Military Aircraft

Fifth-Gen Fighter Jets Made for Ukraine War, Russia's Su-57 Is Missing

The Sukhoi Su-57 completed combat operations over Ukraine

World Defence News: Russia deploys advanced Su-57 fighters in combat operations against Ukraine

The Sukhoi Su-57 completed combat operations over Ukraine

Possible Su-57 observed on Ukraine bombing mission