Jonathan Walker is a member of the British Commission for Military History and a Vice President of the WCWA. His books include 'The Blue Beast. Power & Passion in the Great War','Poland Alone', 'Aden Insurgency', The Blood Tub', 'War letters to a Wife' (as Ed.). His latest book, 'Operation Unthinkable', is a study of Churchill's audacious top secret plan to attack the Soviet Union in 1945. When he is not navigating battlefields across the world, he enjoys lecturing on land or at sea.