A BRITON released from Guantanamo Bay has admitted being interviewed for advanced-level terrorist training in Afghanistan by two senior Al-Qaeda leaders and later volunteering for a "martyrdom operation". Feroz Abbasi believes he was singled out because of his western background, which would have allowed him to plan an attack without arousing as much suspicion as Arab militants. He says he was prepared to take "actions" against Jewish and American military targets as part of his personal commitment to jihad, or holy war.Abbasi's revelations are contained in a 150-page handwritten "autobiography" obtained by The Sunday Times from the US authorities. The document, in 12 chapters, provides the most comprehensive insight to date into Afghanistan's terror camps, which have been used to train thousands of Islamic extremists, some of whom are now living in western countries as Al-Qaeda "sleepers". Abbasi, 24, describes how a lack of self-esteem during childhood spurred him into militancy and led to him enrolling in courses in Afghanistan. They ranged from basic firearms training with a Kalashnikov rifle to mountain and urban warfare and intelligence gathering. He claims that other British Muslims received similar training and explains how he was captured, having been abandoned by Al-Qaeda fighters during the Afghan conflict with America and its allies. Abbasi, of Croydon, south London, wrote the statement at Guantanamo Bay in Cuba in 2003. It was used as evidence at a US military tribunal at Camp Delta before his release.