.Ukraine affirms F-16s have shown up in country as Zelensky advertises 'new section' in battle against Russia CNNUkraine acquires initial F-16 boxer planes to strengthen defenses against Russia, authorities inform AP The Associated PressExclusive|USA to Upper arm Ukraine's F-16 Planes With Advanced Defense The Stock Market JournalWar in Ukraine: Zelenskiy Reveals US-Made F-16 Fighter Planes in Tour Near Kyiv BloombergF-16 competitor jets arrive in Ukraine that Zelenskyy points out will certainly enhance aggression against Russia CBS News.