.Ukraine verifies F-16s have shown up in country as Zelensky proclaims 'new chapter' in battle versus Russia CNNUkraine obtains 1st F-16 fighter planes to bolster defenses versus Russia, representatives say to AP The Associated PressExclusive|United State to Upper arm Ukraine's F-16 Jets With Advanced Defense The Stock Market JournalWar in Ukraine: Zelenskiy Shows US-Made F-16 Boxer Planes in Flight Near Kyiv BloombergF-16 fighter planes arrive in Ukraine that Zelenskyy mentions will improve fight against Russia CBS Information.