A private is a soldier, usually with the lowest rank in many armies. Soldiers with the rank of private may be conscripts or they may be professional (career) soldiers.
A non-commissioned officer (NCO) is a military officer who does not hold a commission. Non-commissioned officers usually earn their position of authority by promotion through the enlisted ranks. In contrast, commissioned officers usually enter directly from a military academy, officer training corps (OTC) or reserve officer training corps (ROTC), or officer candidate school (OCS) or officer training school (OTS), after receiving a post-secondary degree.
Corporal is a military rank in use by the armed forces of many countries. It is also a police rank in some police services. The rank is usually the lowest ranking non-commissioned officer. In some militaries, the rank of corporal nominally corresponds to commanding a section or squad of soldiers.
Lance corporal is a military rank, used by many English-speaking armed forces worldwide, and also by some police forces and other uniformed organisations. It is below the rank of corporal.
The chart below represents the current enlisted rank insignia of the United States Air Force.
The Air Training Corps (ATC) is a British volunteer youth organisation of the United Kingdom; aligned to, and fostering the knowledge and learning of military values, primarily focussing on military aviation. Part of the Royal Air Force Air Cadets (RAFAC), the ATC is sponsored by the Royal Air Force (RAF) and the wider Ministry of Defence (MoD). The majority of Air Training Corps staff are volunteers, though some staff are paid for full-time work; including Commandant Air Cadets, who is a Royal Air Force officer as part of a Full Term Reserve Service commitment.
Flight sergeant is a senior non-commissioned rank in the Royal Air Force and several other air forces which have adopted all or part of the RAF rank structure. It is equivalent to a staff sergeant or colour sergeant in the British Army, a colour sergeant in the Royal Marines, and a chief petty officer in the Royal Navy, and has a NATO rank code of OR-7. In the RAF, flight sergeant ranks above chief technician and below warrant officer.
Chief technician is a senior non-commissioned rank in the Royal Air Force which is only held by aviators in technical trades and by musicians. It is between sergeant and flight sergeant and, like the latter has a NATO code of OR-7. Aviators in non-technical trades progress directly from sergeant to flight sergeant. Along with junior technician this is a survivor of a separate ranking system for technicians introduced in 1950 and abolished in 1964. During that period it was equivalent to flight sergeant, but was made junior to that rank in 1964. Chief technicians are usually addressed as "Chief".
Junior technician is a junior non-commissioned rank in the Royal Air Force, the Pakistan Air Force and the Royal Danish Air Force. In the RAF it ranks equivalent to senior aircraftman technician, equivalent to senior aircraftman (AS1) and below corporal and has a NATO rank code of OR-2. Since 2005, the RAF has ceased promoting to and therefore phasing out of this rank, to be replaced by AS1(T).
Senior aircraftman (SAC) or senior aircraftwoman (SACW) was a rank in the Royal Air Force, ranking between leading aircraftman and senior aircraftman technician and having a NATO rank code of OR-2. The rank, which is non-supervisory, was introduced on 1 January 1951. The rank badge is a three-bladed propeller. The rank was renamed Air Specialist (AS1) in the Royal Air Force in July 2022.
Leading aircraftman (LAC) or leading aircraftwoman (LACW) is a junior rank in some air forces. It sits between aircraftman and senior aircraftman, and has a NATO rank code of OR-2. The rank badge is a horizontal two-bladed propeller. The rank was renamed air specialist (AS2) in the Royal Air Force in July 2022.
Air Recruit is the lowest rank in the British Royal Air Force (RAF) and the air forces of several other Commonwealth countries. In RAF slang, aircraftmen are sometimes called "erks".
The Military ranks of Finland are the military insignia used by the Finnish Defence Forces. The ranks incorporates features from Swedish, German, and Russian armed forces. In addition, the system has some typically Finnish characteristics that are mostly due to the personnel structure of the Finnish Defence Forces. The ranks have official names in Finnish and Swedish languages and official English translations. The Swedish forms are used in all Swedish-languages communications in Finland, e.g. in Swedish-speaking units of Finnish Defence Force. The system of ranks in the Swedish Armed Forces is slightly different.
The term used in the Royal Air Force (RAF) to refer to all ranks below commissioned officer level is other ranks (ORs). It includes warrant officers (WOs), non-commissioned officers (NCOs) and airmen.
Before Unification as the Canadian Armed Forces in 1968, the Canadian military had three distinct services: the Royal Canadian Navy, the Royal Canadian Air Force, and the Canadian Army. All three services had a Regular (full-time) component and a reserve (part-time) component. The rank structure for these services were based on the services of the British military, the Royal Navy, the Royal Air Force, and the British Army. The change to a "Canadian" rank structure meant that many of the traditional (British) rank titles and insignia were removed or changed.
Specialist is a military rank in some countries' armed forces. Two branches of the United States Armed Forces use the rank. It is one of the four junior enlisted ranks in the United States Army, above private (PVT), private (PV2), and private first class and is equivalent in pay grade to corporal; in the United States Space Force, four grades of specialist comprise the four junior enlisted ranks below the rank of sergeant.
The rank structure of the Royal Australian Air Force (RAAF) has been inherited from the Royal Air Force (RAF). The RAF based its officer ranks on the Royal Navy, and its airmen ranks on the British Army.
New Zealand military ranks are largely based on those of the United Kingdom. The three services have their own rank structure, with a rank equivalency that allows seamless interoperability between the services. All three services form part of the New Zealand Defence Force.
A warrant officer (WO) in the British Armed Forces is a member of the highest-ranking group of non-commissioned ranks, holding the King's Warrant, which is signed by the Secretary of State for Defence.
