Subject Region
Afghanistan
2
Africa, French-speaking West
2
Africa, North
1
Alberta
1
Australia
2
Bletchley (Buckinghamshire)
2
Bletchley (Buckinghamshire, England)
2
Bletchley Park (Milton Keynes, England)
1
Bulgaria
1
Burma
1
Canada
7
China
10
Colombia
1
Communist countries
6
Confederate States of America
3
Crimea (Ukraine)
1
Cuba
1
Czechoslovakia
4
Egypt
1
England
5
Espana
1
Europe
5
Europe, Eastern
2
Europe, Western
2
Foreign countries
1
Former communist countries
1
France
9
Germany
15
Germany (East)
9
Germany (West)
2
Golden Triangle (Southeast Asia)
1
Great Britain
42
India
2
Indochina
1
Iran
3
Iraq
4
Ireland
2
Israel
2
Italy
1
Japan
1
Mexican-American Border Region
1
Mexico
2
Middle East
4
New York
2
New York (N.Y.)
1
New York (State)
2
Normandy
1
North America
1
Palestine
2
Poland
1
more ...