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Subjects
Air defense
1
Arab-Israeli war
1
Army
1
Athletics
1
Aviation
1
Chemical decontamination techniques
1
China
1
Christian life
1
Civil defense
6
Civil defense at factories
2
Civil defense exercise
1
Civil defense obligations
2
Cold War
1
Communism
1
Communist strategy
1
Constitutional law
1
Constitutions
1
Construction of shelters
1
Contamination area
1
Czechoslovakia
1