The success of Air Force Junior ROTC would not be possible without the expertise and dedication of the nearly 1,600 Airmen who serve as Aerospace Science Instructors. Air Force Junior ROTC is a full program and is not always limited to the 'regular' school day, or in the classroom setting. Air Force Junior ROTC instructors often supervise Leadership Development Requirements (LDRs) after regular school hours. LDRs are experiential learning activities like drill teams, academic bowl teams, marksmanship teams, etc. A robust and highly successful AFJROTC program will have several active LDRs throughout the year. Each Air Force Junior ROTC program must be staffed with a minimum of two instructors. More instructors are added as enrollment grows. An Air Force Junior ROTC unit typically has one officer and one enlisted instructor. Officer instructors have at least a bachelor's degree. Over 90 percent of them have master's degrees with backgrounds in teaching, extensive experience managing complex programs, and many have significant experience working with youth groups. Enlisted instructors are noncommissioned officers who must have at least an associate degree, but many have a bachelor's degree or higher. All enlisted instructors have extensive experience in leadership, supply, administration, drill and ceremony, teaching, and many have significant experience working with youth groups.