.Ukraine validates F-16s have shown up in nation as Zelensky advertises 'new chapter' in fight against Russia CNNUkraine receives very first F-16 boxer planes to bolster defenses against Russia, representatives inform AP The Associated PressExclusive|U.S. to Upper arm Ukraine's F-16 Planes With Advanced Defense The Wall Street JournalWar in Ukraine: Zelenskiy Shows US-Made F-16 Fighter Planes in Tour Near Kyiv BloombergF-16 fighter jets show up in Ukraine that Zelenskyy states will definitely enhance fight against Russia CBS Updates.