Chelsea Elizabeth Manning is an American activist, politician, and former United States Army soldier. wikipedia.org
Definition #2 for "chelsea manning"
Chelsea Manning (born Bradley E. Manning) is a former U.S. Army soldier who was arrested in May 2010 in Iraq, suspected of leaking classified military documents to the whistleblower website WikiLeaks. Manning was formally charged in July 2010 with unauthorized transfer of classified data and national defense information; she received 22 additional charges in March 2011, including ?aiding the enemy? which is a capital offense punishable by execution. The leaked material is said to have included 250,000 U.S. diplomatic cables, footage of a July 2007 Baghdad airstrike and footage of the May 2009 Granai airstrike in Afghanistan.