Russia-Ukraine war: Key things to know about the conflict

Russian forces largely bogged down outside major cities in Ukraine have turned to shelling them from a distance, including dozens of confirmed attacks on hospitals and health facilities during the war now in its fourth week. The World Health Organization’s director-general said Thursday that the organization had verified 43 such attacks, with 12 people killed and 34 injured. Ukrainian President Volodymyr Zelenskyy said he’s thankful to U.S. President Joe Biden for additional military aid but won’t  specifically what the new package includes because he doesn’t want to tip off Russia.