.Ukraine affirms F-16s have actually shown up in nation as Zelensky declares 'brand-new phase' in battle against Russia CNNUkraine receives initial F-16 competitor planes to boost defenses against Russia, authorities tell AP The Associated PressExclusive|U.S. to Arm Ukraine's F-16 Jets Along with Advanced Defense The Commercial JournalWar in Ukraine: Zelenskiy Shows US-Made F-16 Fighter Planes in Flight Near Kyiv BloombergF-16 boxer planes arrive in Ukraine that Zelenskyy says will definitely boost aggression against Russia CBS Headlines.