.Ukraine validates F-16s have gotten here in country as Zelensky heralds 'new chapter' in fight against Russia CNNUkraine acquires initial F-16 boxer jets to strengthen defenses against Russia, officials tell AP The Associated PressExclusive|USA to Arm Ukraine's F-16 Planes Along with Advanced Defense The Wall Street JournalWar in Ukraine: Zelenskiy Shows US-Made F-16 Competitor Jets in Tour Near Kyiv BloombergF-16 boxer planes show up in Ukraine that Zelenskyy says are going to boost aggression against Russia CBS Updates.