Almost 15,000 Ukrainian civilians have been killed and just over 40,000 injured since the start of the war through last December.
President Trump said he would consider extending U.S. security guarantees for Ukraine beyond 15 years, according to President Zelenskyy.
Monday's hastily assembled meeting comes after President Trump met on Friday with Russian President Vladimir Putin in Alaska.
Presidents Trump and Putin are holding a press conference following their meeting in Alaska to discuss ending the Russia-Ukraine war.
NATO Secretary-General Mark Rutte is in Washington for talks with President Donald Trump, Secretary of State Marco Rubio and others.
A dozen leaders from Europe and Canada are in Ukraine’s capital to mark the third anniversary of Russia’s invasion.
Russia and the U.S. have agreed to start working toward ending the war in Ukraine and improving their diplomatic and economic ties.
Biden's administration is working quickly to spend the money it has available before President-elect Trump takes office in three weeks.
The aid in the new package is in presidential drawdown authority, which allows the Pentagon to take weapons off the shelves
Ukrainian officials say Russia has launched a massive missile barrage targeting Ukraine’s energy infrastructure.