.Ukraine validates F-16s have arrived in nation as Zelensky heralds 'brand new phase' in battle versus Russia CNNUkraine receives first F-16 fighter jets to strengthen defenses versus Russia, representatives tell AP The Associated PressExclusive|U.S. to Upper arm Ukraine's F-16 Jets With Advanced Weapons The Commercial JournalWar in Ukraine: Zelenskiy Reveals US-Made F-16 Fighter Jets in Flight Near Kyiv BloombergF-16 boxer planes get there in Ukraine that Zelenskyy points out are going to boost fight against Russia CBS News.