Mr Zelensky said Russia had positioned almost 200,000 troops and thousands of combat vehicles on Ukraine’s borders ahead of Thursday’s invasion.Moscow first struck Ukraine’s military infrastructure and border guard units. Then Ukrainian forces said Russian military vehicles had crossed the border near Kharkiv in the north, Luhansk in the east, Russian-annexed Crimea in the south and from Belarus too. Belarus’s authoritarian leader Alexander Lukashenko said his country’s military were not involved but could be if needed.