The term 'military division' refers to a hierarchical structure of the armed forces. It is composed of four components: a UNIT, a BRANCH, a SECTOR, and an army UNIT. A UNIT is the smallest component and is typically composed of a few people. A BRANCH is a larger component that is composed of several units. A SECTOR is even larger and is composed of several branches. Finally, an army UNIT is the largest component and is composed of several sectors. Together, these four components form the military division.