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Subjects
Agriculture
2
Air defense
1
Air raid warning
1
Animal and plant protection reconnaissance
1
Bikini atoll nuclear tests
1
Biological warfare
1
Chemical decontamination
2
Civil defense
7
Civil defense exercise
1
Decontamination
2
Decontamination of animals
1
Decontamination of food
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7
Decontamination of land
1
Decontamination of technical equipment
1
Decontamination of water
1
Epidemic
1
First World War
1
Food storage
2
Gyöngyös
1
Imperialist aggression
1