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Subjects
Personal antichemical-protection gear
3
Protective clothing
3
Transportation
3
War production plants
3
Warning
3
Water supply
3
Air raid
2
Arms race
2
Assembly area
2
Biological warfare
2
Chemical attack
2
Construction of shelters
2
Damage zones
2
Debrecen
2
Decontamination of personal clothing
2
Educational counseling
2
Epidemic
2
Escape route
2
Evacuation and refugee shelter services
2
First World War
2