President Biden has been talking with European leaders. He called Russia's attack against Ukraine a "needless act of aggression against Ukraine and global peace and security."
NPR's A Martinez talks to Nina Khrushcheva, a professor of international affairs at the New School in New York, about Russia's decision to invade Ukraine.
For a historical view on the Ukraine crisis, NPR's Leila Fadel talks to Mary Elise Sarotte, professor of history at Johns Hopkins University School of Advanced International Studies.
Shelling can be heard across parts of Ukraine as Russia has begun its military action. In Odessa, Ukrainian's are packing up and leaving to seek shelter elsewhere.
NPR's Rachel Martin speaks to retired Adm. Mike Mullen, former chairman of the Joint Chiefs of Staff, about how the Russian invasion of Ukraine is unfolding.
NPR's Rachel Martin talks to Russia military expert Jeffrey Edmonds, who formerly served as the director for Russia at the National Security Council, about the country's military capabilities.
A team from the Museum of London Archaeology began excavating an 1,800-year-old Roman mosaic. It has intricate geometric and flower patterns and was probably located in an area with wealthy residents.