The term 'military levels' can refer to the various RANKS within a military organization. RANKS are typically organized in a hierarchical structure, with each rank having a different level of authority and responsibility. The most common RANKS are enlisted personnel, non-commissioned officers, and commissioned officers. Enlisted personnel are the lowest ranking members of the military and typically have the least amount of authority and responsibility. Non-commissioned officers are the middle ranking members of the military and typically have more authority and responsibility than enlisted personnel. Commissioned officers are the highest ranking members of the military and typically have the most authority and responsibility.