Deployments to United Nations (UN) missions or high-altitude areas require specific clearances dictated by this order.
Here's a useful guide based on my analysis: army order 03 2001 dgms army high quality
It defines strict, evidence-based standards for classifying personnel based on physical capacity, including the ability to operate in High Altitude Areas (HAA) , combat stress, and handling heavy loads. Deployments to United Nations (UN) missions or high-altitude