Great Escapes: The story of MI9’s Second World War escape and evasion mapsThe definitive history of MI9's emergency escape and evasion mapping programme and the contribution the maps made to victory in 1945. Fascinating stories of secret maps used by prisoners of World War II. The creation of MI9 in December 1939, the rationale for the new military intelligence branch and the context of the history of military mapping on silk is outlined. The map production programme is described, together with its progress and the