The Guantánamo Bay files leak (also known as The Guantánamo Files) began on 25 April 2011, when WikiLeaks, along with several independent news organizations, began publishing 779 formerly secret documents relating to detainees at the United States' Guantánamo Bay detention camp established in 2002 after its invasion of Afghanistan in 2001. The documents consist of classified assessments, interviews, and internal memos about detainees, which were written by the Pentagon's Joint Task Force Guantanamo, headquartered at Guantanamo Bay Naval Base. The documents are marked "secret" and NOFORN (information that is not to be shared with representatives of other countries).