ABC-defense officer

ABC

ABC warfare

ABC weapons

ABC-protective mask

field officer (field-grade officer / senior officer)

non-commissioned officer (NCO) / noncomissioned officer

Senior Air Defense Officer (SADO)

passive defense officer

radiological defense officer

perimeter defense (all-around defense)

beach defense mine / beach-defense mine

above water warfare officer

Air Force Officer Training School

air liaison officer (ALO)

air officer`s guide

airlift duty officer

anti-submarine warfare officer

Army Officer Candidate School

assignment officer

calling officer

career officer

chemical officer

chief information officer (CIO)

Chief Petty Officer (CPO)

Chief Staff Officer

chief warrant officer

commanding officer (CO)

commissioned officer (ComO)

communications officer

control organization officer

duty officer

executive officer (XO)