On 25 July 2010, the release of 91,731 classified documents from the WikiLeaks organization was made public. The documents cover U.S. military incident and intelligence reports from January 2004 to December 2009. Some of these documents included sanitized, and "covered up", accounts of civilian casualties caused by Coalition Forces. The reports included many references to other incidents involving civilian casualties like the Kunduz airstrike and Nangar Khel incident. The leaked documents also contain reports of Pakistan collusion with the Taliban. According to "Der Spiegel", "the documents clearly show that the Pakistani intelligence agency Inter-Services Intelligence (usually known as the ISI) is the most important accomplice the Taliban has outside of Afghanistan."