This third in a four-part series on why academic achievement gaps exist explains how U.S. Department of Defense schools for children of military families offer lessons on how to raise academic achievement among minority students. Minority students in these schools do better than their counterparts almost anywhere in the United States on standardized tests. Though black and Hispanic students in military-run schools still generally lag behind their white counterparts, the gap is smaller than in civilian schools. Advantages of Defense Department schools include a long history educating diverse students, support of the military culture and infrastructure, and military support in promoting parent participation. Principals can enlist the local command to provide schools with volunteers and technological expertise. With frequent moves a fact of life, military children learn quickly to adjust to new settings. Defense Department schools use standardized curricula so students can make such transitions easily. Special programs exist for students who struggle academically. Students are exposed to academically challenging courses and routinely take field trips. Defense Department schools have a teaching force that is more educated and experienced than most. Teachers receive competitive salaries as well as housing allowances. (SM)