Joe Biden pledged to Ukraine President Volodomyr Zelenskiy on Monday that the United States will provide Ukraine with advanced air systems after a devastating missile barrage from Russia. Biden spoke by phone with Zelenskiy to give assurances about continued U.S. support and to condemn the "senseless attacks" from Russia that hit civilian targets. "Biden pledged to continue providing Ukraine with the support needed to defend itself, including advanced air defense systems," a White House statement on the phone call said.