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.
Military ranks are a system of hierarchical relationships, within armed forces, police, intelligence agencies or other institutions organized along military lines. The military rank system defines dominance, authority, and responsibility in a military hierarchy. It incorporates the principles of exercising power and authority into the military chain of command—the succession of commanders superior to subordinates through which command is exercised. The military chain of command constructs an important component for organized collective action.
Regimental sergeant major (RSM) is an appointment that may be held by a warrant officer (WO) in the British Army, the Royal Marines, and the armies of many other Commonwealth and former Commonwealth nations. It is also an actual rank in the Irish Defence Forces, and formerly in the British Army, Royal Marines and United States Army. Only one warrant officer holds the appointment of RSM in any regiment or battalion, making them the senior warrant officer; in a unit with more than one top-ranked WO, the RSM is considered to be first amongst equals". The RSM is primarily responsible for assisting their commander in maintaining standards and discipline amongst the non-commissioned members and acts as a parental figure to their subordinates, sometimes referred to by the mantra "Drill, Dress and Discipline".
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.
Sergeant is a rank in use by the armed forces of many countries. It is also a police rank in some police services. The alternative spelling, serjeant, is used in The Rifles and other units that draw their heritage from the British light infantry. Its origin is the Latin serviens, 'one who serves', through the Old French term serjant.
Sergeant major is a senior non-commissioned rank or appointment in many militaries around the world.
Colour sergeant is a rank of non-commissioned officer found in several armies and marine corps.
The commanding officer (CO) or commander, or sometimes, if the incumbent is a general officer, commanding general (CG) or general officer commanding (GOC), is the officer in command of a military unit. The commanding officer has ultimate authority over the unit, and is usually given wide latitude to run the unit as they see fit, within the bounds of military law. In this respect, commanding officers have significant responsibilities, duties, and powers.
Chief Warrant officer is a senior warrant officer rank, used in many countries.
"Other ranks" is the term used to refer to all ranks below officers in the British Army and the Royal Marines. It includes warrant officers, non-commissioned officers ("NCOs") and ordinary soldiers with the rank of private or regimental equivalent. Officers may, in speaking, distinguish themselves from those "in the ranks".
Regimental quartermaster sergeant (RQMS) is a military rank in some militaries, and an appointment in others.
The pipe major is the leading musician of a pipe band, whether military or civilian. Like the appointment of drum major, the position is derived from British Army traditions. During the early twentieth century, the term sergeant piper was used instead. The pipe major is often assisted by a pipe sergeant, who has similar duties in the band and leads the band in the absence of the pipe major.
Rank insignia in the French Army are worn on the sleeve or on shoulder marks of uniforms, and range up to the highest rank of Marshal of France, a state honour denoted with a seven-star insignia that was last conferred posthumously on Marie Pierre Koenig in 1984.
Subedar-major is the senior-most rank of junior commissioned officer in the Indian and Pakistani Armies, formerly known as the Viceroy's commissioned officer in the British Indian Army.
Master warrant officer (MWO) is a senior military rank in the Bangladesh Armed Forces, the Canadian Forces, Singapore Armed Forces, the South African National Defence Force and the Israel Defense Forces.
Quartermaster sergeant (QMS) is a class of rank or appointment in some armed forces, especially those of the United Kingdom and the Commonwealth, and formerly also in the United States.
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.
A drum major in the military is the individual leading a military band or a field unit. It is an appointment, not a military rank. Military drum majors utilize a ceremonial mace for giving commands while marching. Many drum majors, particularly American- or British-influenced ones, wear a sash that can carry embroidered badges of their home unit and battle honors; a pair of ceremonial drum sticks are often attached.
Rank insignia in the French Air and Space Force are worn on the sleeve or on shoulder marks of uniforms
