What is Wikileaks and what has it leaked?published at 05:11 British Summer Time 25 June
Since it launched in 2006, Wikileaks has been renowned for publishing thousands of classified documents covering everything from the film industry to national security and wars.
In 2010, it published a video from a US military helicopter showing the killing of civilians in Baghdad, Iraq.
It has also published hundreds of thousands of documents leaked by former US Army intelligence analyst Chelsea Manning, who was arrested, imprisoned and later freed.
Documents relating to the war in Afghanistan revealed how the US military had killed hundreds of civilians in unreported incidents.
Further documents from the Iraq war revealed that 66,000 civilians had been killed - more than previously reported. The documents also showed that prisoners had been tortured by Iraqi forces.
You can read more about the disclosures here.
The US government has continued to argue that the leaks put people's lives at risk.