Russia states the momentum towards a peace agreement in Ukraine, following the summit between President Putin and President Trump in Alaska, has vanished.
After a disastrous meeting at the White House last February, Zelensky worked tirelessly to dispel Trump's doubts and change his perspective on Ukrainian territory.
Ukraine asserts it shot down a Russian Su-34 fighter-bomber while the aircraft was deploying glide bombs near Zaporizhzhia, but hasn't provided evidence.
Trump's declaration that Ukraine could reclaim all Russian-held territory signals a tougher message to Moscow, potentially aimed at reviving peace talks.
Hungary and Slovakia were not invited to a meeting on a UAV defense project on the eastern border, while non-EU member Ukraine was proposed to participate.
Russia is escalating attacks on Ukraine's energy infrastructure ahead of winter, while Kyiv is retaliating in kind to cripple its adversary's finances.