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Subjects
- United States[remove]29
- Military Personnel22
- World War II20
- Protective Clothing13
- Cold Temperature10
- Weapons8
- Military Personnel -- education5
- Motor Vehicles5
- Adaptation, Physiological4
- Air Pollutants, Occupational4
- Burns -- prevention & control4
- Cold Climate3
- Ventilation3
- Acclimatization2
- Equipment and Supplies2
- Food Storage -- instrumentation2
- Hot Temperature2
- Arctic Regions1
- Climate1
- Clothing1