My guess was the scare of nuclear bombs being dropped from planes and crashing into buildings and such. In my opinion of course.
Travel, Curfew, Rationing
On foot, on bicycles, by train, by car, by ship or by plane.
People did not travel from London to Berlin in WW2 unless they were in a military aircraft and dropping bombs.
They might make world war z 2 in 2016.And I hope they will.
After World War 2
with war bonds
yes,our country used to travel in word war 2
Because of rationing
Mostly the European continent . (Warfare was not restricted to Europe.)
they poo
Sonar, RADAR and satellites and space travel improved the accuracy of maps after World War 2.
Mostly by train
Come culo
They travel under water
The European Economic Community (EEC) allowed labor and capital to travel freely within member nations after World War 2.
Travel, Curfew, Rationing
On foot, on bicycles, by train, by car, by ship or by plane.