President Joe Biden seeks to shore up America's alliances in Europe. Ukrainian commanders released by Russia return to Ukraine. And a federal court bans gender-affirming care for Tennessee minors.Want more comprehensive analysis of the most important news of the day, plus a little fun? Subscribe to the Up First newsletter.Up First is produced by Nina Kravinsky, Shelby Hawkins and Kaity Kline. Our editors are Olivia Hampton, Roberta Rampton, Katia Riddle, Michael Sullivan and Alice Woelfle. Our technical director is Carleigh Strange with engineering support from Arthur Laurent.