AdvertisementUkraine says it's downed 200 aircraft, a mark of Russian failures in the skyMay 16, 2022Greg MyrefacebookEmailA Ukrainian soldier examines a fragment of a Russian Air Force Su-25 jet after a battle at the village of Kolonshchyna, Ukraine, on April 21. Russia was expected to establish air superiority in the first days of the war. But Ukraine's air defenses have been so effective that Russian pilots often fire their weapons while over Russia and never enter Ukrainian airspace. (AP)