If your knowledge allows you to advise commanders in a specific region on military operations, what cultural proficiency level are you exhibiting?

It is called 'Cross-Cultural Competence'

Essentially this means, you understand the culture of the people, their skills, attributes and way of life.

A thorough study is required before someone can be competent on another culture. Time needs to be devoted to learning the language, listening to their songs, watching movies and talking to the local people.