The USAAF may well have shut up shop in June 1945 but the R.A.F. and MI whatever carried on into the Cold War and perhaps even to this very day.
I know that Lincoln crew where supplied with maps of Eastern Europe because they were expected to walk home. Their targets being well beyond the out and back range of their aircraft.
If this continued into the V force era perhaps BEagle had a map guiding him to his Yurt where his Mongolian maiden eagerly awaited!