During a town hall on CNN on Thursday, White House National Security Adviser Jake Sullivan stated that President Joe Biden was advised by the military that the Abrams tanks the U.S. agreed to send to Ukraine wouldn't "make sense" for that war, Germany said it wouldn't provide the tanks that would make sense "unless you, the United States, provide your tanks. And President Biden said, if me providing Abrams tanks, even if it's not the most sensible military move, will help unlock German tanks to get to the front lines and also will sustain alliance unity, I will do it."