Proper posture starts with a good understanding of the muscles that are involved in posture. Several different muscles are responsible for maintaining upright posture, and over time, poor posture can cause these muscles to lose strength.
Air Force. A major in the Air Force typically has duties as a senior staff officer at the squadron and wing level. In flying squadrons majors are generally flight commanders or assistant directors of operations. In the mission support and maintenance groups majors may occasionally be squadron commanders.
The mission of the United States Air Force (USAF) is to defend the. United States through the exploitation of air and space. A major function. of the USAF is to gain and maintain control of the air and space. environment. Control of the air is a necessity in modern warfare. Air-. men have sought and gained air superiority in every major US conflict. since World War II.