john-dill-globe-mh-spring-2023.jpg Then General Sir John Dill poses for a contemplative portrait in January 1941. In his wartime role as senior British member of the Combined Chiefs of Staff he provided back channel information vital to a coordinated Allied war effort. (Reuben Saidman/Popperfoto (Getty Images)) Reuben Saidman/Popperfoto (Getty Images)