The Pentagon has been trying to gradually reduce the number of prisoners being held at the U.S. detention camp at Guantanamo Bay, Cuba.

NPR: Freed from Gitmo, Where Do Detainees Go?

During his run for the White House, Obama pledged to improve ties with the Muslim world, draw down U.S. troops in Iraq and close the detention camp at Guantanamo Bay, Cuba.

CNN: In first week, Obama takes initial steps on ambitious agenda

Mr Westwood-Brookes said the document, addressed and dated "Detention Camp, October 26th 1943" was one of the most important letters by Gandhi to be offered for sale as it instigated his secret negotiations for Indian Independence.

BBC: Gandhi letter

Men from the UK who were held at Guantanamo sued the government for damages for its alleged complicity in their detention and transfer to the US military camp.

BBC: Secret cases: Who could be affected?