Escape and evasion map printed on playing cards distributed to Prisoners of War which could be soaked and pealed apart revealing the escape map. Many of the maps of the Pacific region were printed by the US Army Map Service, while the UK was responsible for many of the European Theatre maps. Many of the US Navy charts were folded in envelopes and distributed to the air crews before a mission, and to be turned in when the mission was successfully completed. They were called "drift charts" by the Navy, "...since their prime purpose was to indicate to aircrews survivors in their life rafts
The Netherlands in World War I served have been identified and were sourced through the Personnel Records of the First World War, held at Library and Archives Canada. According to international law, soldiers of the warring nations who entered a neutral country had to be interned for the duration of the war. Of the soldiers who entered the Netherlands on purpose or by mistake, 33,105 were Belgian, 1,751 British, 1,461 German, 8 French, and 4 American. Among these prisoners were also pilots who had flown into Dutch airspace and crashed. The majority of Belgian and British POW's had fled to the Netherlands after the fall of