WikiLeaks founder Julian Assange requests asylum in London's Ecuadorian Embassy for fear of extradition to the US after publication of previously classified documents including footage of civilian killings by the US army; he will remain there until 2019.

WikiLeaks is a non-profit media organisation and publisher of leaked documents. It is funded by donations and media partnerships. It has published classified documents and other media provided by anonymous sources. It was founded in 2006 by Julian Assange. Kristinn Hrafnsson is its editor-in-chief. Its website states that it has released more than ten million documents and associated analyses. WikiLeaks' most recent publication of original documents was in 2019 and its most recent publication was in 2021. From November 2022, numerous documents on the organisation's website became inaccessible. In 2023, Assange said that WikiLeaks is no longer able to publish due to his imprisonment and the effect that US government surveillance and WikiLeaks' funding restrictions were having on potential whistleblowers.

Julian Paul Assange is an Australian editor, publisher, and activist who founded WikiLeaks in 2006. He came to international attention in 2010 after WikiLeaks published a series of leaks from Chelsea Manning, a United States Army intelligence analyst: footage of a U.S. airstrike in Baghdad, U.S. military logs from the Afghanistan and Iraq wars, and U.S. diplomatic cables. Assange has won over two dozen awards for publishing and human rights activism.

In an extradition, one jurisdiction delivers a person accused or convicted of committing a crime in another jurisdiction, into the custody of the other's law enforcement. It is a cooperative law enforcement procedure between the two jurisdictions, and depends on the arrangements made between them. In addition to legal aspects of the process, extradition also involves the physical transfer of custody of the person being extradited to the legal authority of the requesting jurisdiction.

Classified information is confidential material that a government, corporation, or non-governmental organisation deems to be sensitive information, which must be protected from unauthorized disclosure and that requires special handling and dissemination controls. Access is restricted by law, regulation, or corporate policies to particular groups of individuals with both the necessary security clearance and a need to know.