Jack Teixeira, a 22-year-old member of the Massachusetts National Guard, has been sentenced to 15 years in prison after pleading guilty to leaking classified military documents related to the war in Ukraine. A federal judge characterized his actions as one of the most significant violations of the Espionage Act, with prosecutors initially recommending a 17-year sentence. Teixeira shared sensitive information, including troop movements and operational details, on the messaging platform Discord, raising serious concerns about U.S. national security and the protection of classified information. During the sentencing, he expressed remorse for the harm caused, acknowledging his responsibility in the matter. The leaks prompted a tightening of security measures within the Pentagon and a reassessment of how sensitive information is handled. Ultimately, Teixeira will also face an additional two years of administrative detention after his release.