Jack Teixeira, a 22-year-old member of the U.S. National Guard, has been sentenced to 15 years in prison for illegally gathering and disseminating classified government documents online. Teixeira pleaded guilty in March to six charges related to his sharing of sensitive military information, including details on the Russia-Ukraine conflict and U.S. surveillance of allies. His actions, initially made public through the platform Discord, triggered significant concern within the U.S. government, marking one of the largest leaks of classified materials since the Edward Snowden revelations in 2013.