Russia said Wednesday attempts to resolve security issues relating to Ukraine without Moscow's participation were a "road to nowhere," and that much diplomatic work needs to be done before Vladimir Putin and Volodymyr Zelenskyy are ever in the same room.

President Volodymyr Zelenskyy has stated that the post-war security guarantee for Ukraine must work like NATO Article 5, which provides for collective security and defence in the event of an attack on one of the member states.

Trump appeared to place the onus of ending the war on the Ukrainian leader, while emphasizing that Ukraine must give up Russian-annexed Crimea and its hopes of joining NATO — key Kremlin demands.

Ukraine is grateful for the new NATO program that allows member states to purchase weapons from the United States for delivery to Kyiv, Ukrainian President Volodymyr Zelenskyy said during a meeting with US President Donald Trump in the Oval Office.