The latest:
- Biden says Putin is a "war criminal"
- Melitopol mayor freed after kidnapping by Russian forces
- Biden announces $800 million in new military aid to Ukraine
- Mariupol theater serving as refuge for hundreds was bombed, city council says
- Zelensky urges Congress to "remember 9/11" as he pleads for more aid
- Zelensky pleads to Biden in English: Be "the leader of the world"
- Jake Sullivan holds highest-level U.S. talks with Russia since invasion
- Zelensky's shame-on-you world tour
- Russia is testing the West's favorite weapon
- Ukraine president says Russian peace talk positions "more realistic"
- Russian troops take 500 hostage at Mariupol hospital, Ukraine says
- Biden to travel to Europe to discuss Russian invasion of Ukraine
- Trump says he thought Putin "was negotiating" before invading Ukraine
- U.S. providing over $186M in additional humanitarian aid to Ukraine
- Slack has started disconnecting customers in Russia
- U.S. sanctions Belarus president Lukashenko, his wife, and others
- Ukraine ambassador asks for "anti-air" support
- Russia sanctions Biden, Secretary of State Blinken
- Fox News cameraman killed in Ukraine
- Over 3 million refugees have fled Ukraine since Russian invasion began
How we got here:
- The crisis in eastern Ukraine escalated drastically on Feb. 21 when Putin recognized two pro-Russian separatist "republics" and sent Russian "peacekeepers" to the territories.
- Ukraine has been battling Russian-backed separatists in the east