close Ukraine mayor says NATO needs Kyiv’s battle-tested army Lviv Mayor Andriy Sadovyi tells Fox News Digital that Ukraine’s battlefield experience, drone warfare innovation and wartime military adaptation are reshaping the future of NATO and European defense. NEW You can now listen to Fox News articles! This is part three of a series examining the challenges confronting the NATO alliance . LVIV, Ukraine — Four years into Russia’s invasion of Ukraine, officials across NATO’s eastern flank