Final answer:
Enlisted personnel (E-7 through E-9) advance by having their performance and qualifications evaluated by a promotion board.
Step-by-step explanation:
Advancements in the military can encompass a wide range of areas, including technology, strategy, training, and organizational structure.
Enlisted personnel (E-7 through E-9) advance by having their performance and qualifications evaluated by a promotion board. The promotion board assesses factors such as job performance, leadership skills, professional development, and time in grade. Based on the board's evaluation, enlisted personnel may be recommended for promotion to the next higher rank.