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Subject
- Campaigns18
- World War, 1939-194518
- Military campaigns17
- Railroads3
- Roads2
- Administrative and political divisions1
- Coal mines and mining1
- Europe1
- Forests and forestry1
- Iron industry and trade1
- Language and languages1
- Languages1
- Population1
- Population density1
- Radio stations1
- Steel industry and trade1
- Transportation1
