.Ukraine verifies F-16s have actually shown up in country as Zelensky proclaims 'new phase' in fight versus Russia CNNUkraine receives initial F-16 competitor planes to boost defenses versus Russia, representatives say to AP The Associated PressExclusive|USA to Upper arm Ukraine's F-16 Planes Along with Advanced Weapons The Wall Street JournalWar in Ukraine: Zelenskiy Presents US-Made F-16 Boxer Jets in Tour Near Kyiv BloombergF-16 boxer planes show up in Ukraine that Zelenskyy points out will certainly increase aggression against Russia CBS Information.