Amid a crew morale crisis, the military has replaced the U.S.S. Abraham Lincoln in the Middle East with another aircraft carrier. Our Pentagon reporter John Ismay, a Navy veteran, explains how the challenges to supply ships in the area will most likely remain the same. Video by John Ismay, Gilad Thaler, Simon Ducroquet, Stephanie Swart, Joey Sendaydiego and Pierre Kattar/The New York Times #usslincoln #iran #us Read the story here: nyti.ms/4xDu740 Discover the journalism Times subscribers get daily, free for your first month in The New York Times app. Download app: nytimes.onelink.me/Xpht/a6wzplra ---------- Whether it's reporting on conflicts abroad and political divisions at home, or covering the latest style trends and scientific developments, New York Times video journalists provide a revealing and unforgettable view of the world. It's all the news that's fit to watch.