Group of Seven talks culminated Sunday with a series of dramatic, in-person appeals from Ukrainian President Volodymyr Zelensky as he pressed leaders gathered in Japan to remain united against Russian aggression. “The United States continues to do all we can to strengthen Ukraine’s ability to defend itself,” Biden said, citing his recent decision to allow F16 fighter jets to go to Ukraine and to train Ukrainian pilots on the aircraft in the United States. “The war in Ukraine is a big issue for the whole world