Harry McCallion was a trained killer, fighting in the world's trouble spots with ruthless professionalism. Born 'a ragged-arsed kid from the backstreets of Glasgow', McCallion joined the Paras to escape a miserable home life and find the family he longed for. After six tense tours in Ulster, McCallion gave up everything to move to South Africa in the hope of qualifying for the highly elite South African Special Forces. Having succeeded in joining the Recces, McCallion was involved in plots to assassinate Robert Mugabe and Joshua Nkomo. Back in Britain, McCallion once again put his body and mind through unimaginable pressure during SAS Selection and ended up back in Ulster for two tours with the SAS anti-terrorist team. Killing Zone is a story of exceptional endurance, told with grim humour and great psychological insight into the minds of those whose lives depend on killing others. "A stun grenade of a book!" - SUNDAY EXPRESS "An extraordinary insight into the psychology of a man who has survived despite choosing to live as dangerously as possible" - THE TIMES