categories of posts
ARMY
general
lie-general
maj-general
brigedier
colenel
lie-colnel
majior
captain
lieutuent
sec-lie

NAVY
Admiral
vice admiral
rear admiral
commodore
commander
lie commander
lieutent
sub -lie
acting -lie

AIRFORCE
Air chief marshal
air marshal
air vice marshal
air commander
group captain
wing commander
squadron
flight -lie
flying officer
pilot officer