2013 US army soldier Chelsea Manning leaks military documents to Wikileaks

Disclosures included the 2007 Baghdad airstrike and a 2009 airstrike in Afghanistan and U.S. diplomatic cable and Army reports known as the Iraq War Logs and the Afghan War Diary. Manning was court-martialled in July 2013 and ordered to serve 35 years; but, in January 2017, President Barack Obama pardoned all but four months of the remaining sentence. Manning said documents were released “to show the true cost of war.”