Biden Reaffirms Support for Ukraine Amid Concerns About Russia-Iran Ties

President Biden marked the start of a second year of war in Europe on Friday by announcing billions of dollars in additional military aid for Ukraine, imposing more sanctions on those helping Russian President Vladimir V. Putin and delivering a grim warning about an alliance between Russia and Iran. Just days after making a secret trip to Ukraine's capital, Mr. Biden joined the leaders of the other Group of 7 nations -- Canada, France, Germany, Italy, Japan and Britain -- in reaffirming his support for the beleaguered country and condemning Russia's invasion a year ago. "A dictator bent on rebuilding an empire will never erase the people's love of liberty," Mr. Biden wrote in a statement on Twitter, alluding to Mr. Putin. "Brutality will never grind down the will of the free. And Ukraine will never be a victory for Russia.