in the armed forces air force, army, navy ~ an air force/army sergeant an army/navy captain

air/field marshal a naval captain/commander/lieutenant/officer have/hold the rank of, serve as ~ She joined the navy and held the rank of captain. He served as a lieutenant in the marine corps.

be appointed, become, be made ~ He was made a colonel at the age of 40. She ought to have been made sergeant by now.

under ~383 men under General Miles attacked the camp.

the rank of ~She was promoted to the rank of colonel.