Russia's A-10: The Sukhoi Su-25

Russia built the last Su-25 in 1992. And yet, a quarter-century later, the idea of restarting the program is gaining ground. Meanwhile, the U.S. Air Force has pushed hard for the retirement of the Warthog, despite its battlefield effectiveness and popularity, to offset the cost of the new F-35 (another a military program that hangs in the balance.).