FILE PHOTO: Sukhoi Su-35S jet fighters of the Russkiye Vityazi (Russian Knights) aerobatic team perform during the MAKS 2021 air show in Zhukovsky, outside Moscow, Russia, July 25, 2021. REUTERS/Tatyana Makeyeva/File Photo
FILE PHOTO: Sukhoi Su-35S jet fighters of the Russkiye Vityazi (Russian Knights) aerobatic team perform during the MAKS 2021 air show in Zhukovsky, outside Moscow, Russia, July 25, 2021. REUTERS/Tatyana Makeyeva/File Photo