Warrant officer (WO) is a rank or category of ranks in the armed forces of many countries. Depending on the country, service, or historical context, warrant officers are sometimes classified as the most junior of the commissioned officer ranks, the most senior of the non-commissioned officer (NCO) ranks, or in a separate category of their own. Warrant officer ranks are especially prominent in the militaries of Commonwealth nations and the United States.
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.
Lieutenant Commander is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank in most armies and air forces is major, and in the Royal Air Force and other Commonwealth air forces is squadron leader. It is roughly equivalent to the Corvette Captain rank in central European countries and the Captain 3rd rank rank in eastern European/CIS countries.
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.
Staff sergeant is a rank of non-commissioned officer used in the armed forces of many countries. It is also a police rank in some police services.
Sergeant major is a senior non-commissioned rank or appointment in many militaries around the world.
This is a table of the ranks and insignia of the Canadian Armed Forces. As the Canadian Armed Forces is officially bilingual, the French language ranks are presented following the English.
A chief petty officer (CPO) is a senior non-commissioned officer in many navies and coast guards, usually above petty officer.
Chief Warrant officer is a senior warrant officer rank, used in many countries.
The title flight officer was a military rank used by the United States Army Air Forces during World War II, and also an air force rank in several Commonwealth countries, where it was used for female officers and was equivalent to the rank of flight lieutenant. The term flight officer is sometimes used today to describe job title positions as aircrew members.
The South African National Defence Force's rank system is largely based on the British system, with the Air Force sharing the Army rank titles. Rank titles changed over time as did the insignia.
Each officer rank in the navy of a NATO country may be compared with the ranks used by any military service in other NATO countries, under a standardized NATO rank scale. This is useful, for instance, in establishing seniority amongst officers serving alongside each other within multinational command structures.
The comparative military ranks of Korea are the military insignia used by the two nations on the Korean Peninsula, those being the Republic of Korea Armed Forces and the Korean People's Army of the Democratic People's Republic of Korea. The United States Forces Korea personnel wear the ranks and insignia used by other service personnel of the United States Armed Forces in the territories of the United States.
The Indonesian National Armed Forces (TNI) uses a simplified ranking system for the three branches of Indonesian Army, Indonesian Navy and Indonesian Air Force. Most of the ranks are similar with differences for the rank titles of the high-ranking officers. Exception exists, however, in the ranks of the service members of the Indonesian Marine Corps. While Indonesian Marine Corps is a branch of the Navy, the rank titles of the Marine Corps are the same as those of the Army, but it still uses the Navy's style insignia.
In the United States Armed Forces, the ranks of warrant officer are rated as officers above all non-commissioned officers, candidates, cadets, and midshipmen, but subordinate to the lowest officer grade of O‑1. This application differs from the Commonwealth of Nations and other militaries, where warrant officers are the most senior of the other ranks, equivalent to the U.S. Armed Forces grades of E‑8 and E‑9.
An officer is a person who holds a position of authority as a member of an armed force or uniformed service.
Commissioned officers' and enlisted rank comparison chart of all marine forces.
Rank comparison chart of all navies of the European Union member states. Some EU member states do not have naval forces, either because they are landlocked Austria, the Czech Republic, Hungary, Luxembourg and Slovakia.
Rank comparison chart of air forces non-commissioned officers and other personnel of the European Union member states.