Chelsea Elizabeth Manning (born Bradley Edward Manning, December 17, 1987) is an American activist and whistleblower. She is a former United States Army soldier who was convicted by court-martial in July 2013 of violations of the Espionage Act and other offenses, after disclosing to WikiLeaks nearly 750,000 classified, or unclassified but sensitive, military and diplomatic documents. She was imprisoned from 2010 until 2017 when her sentence was commuted. A trans woman, Manning stated in 2013 that she had a female gender identity since childhood and wanted to be known as Chelsea Manning. She also expressed a desire to begin hormone replacement therapy.
Assigned in 2009 to an Army unit in Iraq as an intelligence analyst, Manning had access to classified databases. In early 2010, she leaked classified information to WikiLeaks and confided this to Adrian Lamo, an online acquaintance. Lamo indirectly informed the Army's Criminal Investigation Command, and Manning was arrested in May that same year. The material included videos of the July 12, 2007, Baghdad airstrike and the 2009 Granai airstrike in Afghanistan; 251,287 U.S. diplomatic cables; and 482,832 Army reports that came to be known as the "Iraq War Logs" and "Afghan War Diary". The material was published by WikiLeaks and its media partners between April 2010 and April 2011.