What is one responsibility of the cold injury officer or NCO?

The responsibility of observing the soldiers' exposed skin and extremities is crucial in the role of a cold injury officer or non-commissioned officer (NCO). This task involves monitoring for signs of cold-related injuries such as frostbite or hypothermia, which can occur when soldiers are exposed to cold environments. By vigilant observation, the officer is able to detect early warning signs, ensuring timely intervention and treatment, which is vital for preventing further injury and preserving the soldiers' health. This proactive approach is essential in maintaining the welfare and operational readiness of troops in cold weather conditions.

Other responsibilities such as filtering water for drinking, preparing meals, or conducting physical training sessions do not specifically address the unique challenges and risks associated with cold weather injuries, thus highlighting why the role of monitoring exposed skin is central to a cold injury officer or NCO's duties.