It could have been because their ammunition racks were protected by Water jackets, to prevent fires in the ammunition racks from spreading and potentially causing detonation
Answer:
"For many veterans, the symptoms of combat fatigue or combat stress faded once they returned home. For others, the symptoms were long lasting and function impairing. Combat stress can morph into Post Traumatic Stress, which begins to appear in the affected individual after the traumatic experiences have passed."
Explanation: