Biden says he sought to avoid war between two nuclear powers as he speaks about Ukraine

US President Joe Biden said that at the beginning of the crisis in Ukraine he faced a task of avoiding a war between two nuclear powers, Report informs via TASS.

"I had two jobs: One to rally the world and defend Ukraine, and the other is to avoid war between two nuclear powers. We did both those things today," he said as he delivered a final foreign policy speech at the US State Department.

Biden spoke a week before transferring power to his successor Donald Trump.