The Kurds are the world’s largest nation without a state, and Kurdistan is divided up between Turkey, Iran and Syria. This week marks the twentieth anniversary of the abduction of the Kurdish leader Abdullah Öcalan, who remains in solitary confinement as the only prisoner on an island in the Sea of Marmara in Turkey.

Mr Öcalan is one of the founding members of the militant Kurdistan Workers’ Party (PKK) and continues to campaigned for peace and independence for Kurdistan. This is the story of the campaign for his freedom, by the International Initiative (freeocalan.org)