A prototype of Russia's new Sukhoi Checkmate fighter on display during the presentation at the MAKS 2021 event in Zhukovsky, outside Moscow, on July 20, 2021. (Dimitar Dilkoff/AFP via Getty Images)
Russian President Vladimir Putin got a sneak peek of a next-generation stealth fighter jet ahead of the official unveiling later in the day. (Dimitar Dilkoff/AFP via Getty Images)
Some media outlets have described the Checkmate as similar to the F-35. (Dimitar Dilkoff/AFP via Getty Images)
Russia defense firm Sukhoi is the Checkmate's producer. (Alexey Nikolsky/AFP via Getty Images)
There are already interested customers, according to Rostec. (Dimitar Dilkoff/AFP via Getty Images)