The reported loss of a Russian A-50 surveillance aircraft over the Sea of Azov could prove "painful" for Moscow's military as it struggles to subdue Ukraine through winter, according to military experts. Kyiv claimed the downing of an A-50 and the damaging of an Il-22 airborne command post on Sunday, an account supported by prominent pro-war Russian military bloggers on Telegram. Russian authorities have yet to address the claims, and the Defense Ministry did not respond to Newsweek's emailed request for comment. Kyiv has not specified how the aircraft were hit. Newsweek has contacted a spokesperson for Ukraine's air force...