Anti-aircraft gunners of the 110th Mechanized Brigade have destroyed another Russian Su-25 attack aircraft in Donetsk Oblast, Ukraine’s military claimed on May 25. “Another enemy Su-25 attack aircraft is burning up in the steppes of the Ukrainian Donbas,” the Khortytsia operational and strategic group said in a post on Telegram. This is the sixth Russian Su-25 jet that Ukraine has claimed shot down this month. The Soviet-designed Su-25, nicknamed “Frogfoot” by NATO, is a heavily armored ground-attack aircraft that provides close air support for Russian ground troops. The aircraft helps Russia …