The Su-25 Frogfoot, known as the Grach or “Rook” by Russian pilots, is one of those aircraft that may not be at the cutting edge of technology, but still has seen widespread service around the world because it offers an effective and useful solution to the need to blast targets on the ground.

As such, its obvious stablemate is the American A-10 Thunderbolt IIattack plane. But while the U.S. Air Force wants to retire the A-10 starting in 2022, the Su-25 is undergoing extensive upgrades to keep with the times.