A subaltern (IPA: /ˈsʌbəltərn/) is a primarily British military term for a junior officer. Literally meaning "subordinate", subaltern is used to describe commissioned officers below the rank of captain and generally comprises the various grades of lieutenant.
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Listed in the table below are the rank insignia of the British Army. Badges for field officers were introduced in 1810 and the insignia was moved to the epaulettes in 1880. On ceremonial or parade uniforms these ranks continue to be worn on the epaulettes, either as cloth slides or as metal clips, although on the modern 'working dress' (daily uniform) they are usually worn as a cloth slide on the chest. Although these insignia apply across the British Army there is variation in the precise design and colours used and it can take some time to become familiar with them all.
Officers in the ranks of lieutenant and second lieutenant are often referred to as subalterns and these and captains are also referred to as company officers. Brigadiers, colonels, lieutenant colonels and majors are field officers. All above these are considered to be of general officer rank.
Ensign (/ˈɛnsən/; Late Middle English, from Old French enseigne ["mark", "symbol", "signal"; "flag", "standard", "pennant"], from Latin insignia [plural]) is a junior rank of a commissioned officer in the armed forces of some countries, normally in the infantry or navy.
As the junior officer in an infantry regiment was traditionally the carrier of the regimental colors, the rank acquired the name "ensign". This rank has generally been replaced in army ranks by second lieutenant. An ensign was generally the lowest-ranking commissioned officer, except where the rank of subaltern existed.
Lewis Edward Nolan, known to his family as Louis Nolan and in Austrian service as Ludwig Nolan (4 January 1818 – 25 October 1854) was a British Army officer and cavalry tactician best known for his role and death in the Charge of the Light Brigade during the Crimean War. Born to an infantry officer and minor official and his wife, Nolan was educated at the Austrian Inhaber Pioneer School at Tulln, where he was noted as an enthusiastic horseman and military theorist. After early graduation he was commissioned as a subaltern in the 10th Austrian Hussar regiment, serving in Austria, Hungary and on the Polish frontier, where he again became known for his horsemanship and was promoted to senior lieutenant. Due to the nepotism in the Austro-Hungarian armed forces, Nolan transferred to the British Army as a cornet in the 15th Light Dragoons.
Deployed in India, Nolan was eventually made the regimental riding master and an aide-de-camp to General George Berkeley, commander-in-chief in Madras, accompanying him on horse trials to evaluate the use of geldings as cavalry mounts rather than stallions, and was made a captain in 1850. Returning to Great Britain in 1851, he toured continental Europe and wrote two books on horsemanship and cavalry theory, the second of which, Cavalry: Its History and Tactics, was universally acclaimed and led to the adoption of a Nolan-designed saddle by the British Army. A trusted voice on cavalry matters, Nolan was dispatched to the Middle East in the early days of the Crimean War to hunt for appropriate mounts. After returning he was attached to the staff of General Richard Airey, and in this role delivered the order that led to the Charge of the Light Brigade.
Decanus means "chief of ten" in Late Latin. The term originated in the Roman army and became used thereafter for subaltern officials in the Byzantine Empire, as well as for various positions in the Church, whence derives the English title "dean". It is unrelated to the position of deacon (Latin diaconus, Greek διάκονος).