First lieutenantis acommissioned officermilitary rankin manyarmed forces;in some forces, it is anappointment.

The rank oflieutenanthasdifferent meaningsin different military formations, but in most forces it is sub-divided into a senior (first lieutenant) and junior (second lieutenant) rank.

In navies, while certain rank insignia may carry the name lieutenant, the term may also be used to relate to a particular post or duty, rather than a rank.

Indonesia

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InIndonesia,"first lieutenant" is known asLetnan Satu(Lettu), Indonesian National Armed Forces uses this rank across all three of its services. It is just above the rank ofsecond lieutenantand just below the rank ofcaptain.

Israel

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In theIsrael Defense Forces,the rank abovesecond lieutenantis simplylieutenant(Segen). The rank of (קצין מקצועי אקדמאי (קמ "א (katsín miktsoí akademaior "kama" ), a professional academic officer (that is, a medical, dental or veterinary officer, a justice officer or a religious officer), is equivalent to a professional officer of the second class in the reserve and equivalent to first lieutenant.[citation needed]

United Kingdom

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British Army

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In theBritish ArmyandRoyal Marines,the rank abovesecond lieutenantis simplylieutenant(pronouncedlef-tenant), with no ordinal attached.

Before 1871, when the whole British Army switched to using the current rank of "lieutenant", theRoyal Artillery,Royal Engineersandfusilierregimentsused "first lieutenant" and "second lieutenant".

Royal Navy

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Thefirst lieutenant(often abbreviated "1st Lt" ) in aRoyal Navyship is a post or appointment, rather than a rank.

Historically the lieutenants in a ship were ranked in accordance with seniority, with the most senior being termed the first lieutenant and acting as thesecond-in-command,unless the ship was complemented with acommander.Although lieutenants are no longer ranked by seniority, the post of "first lieutenant" remains. In minor war vessels,destroyers,frigates,andsubmarines,thefirst lieutenantis second in command,executive officer(XO) and head of the executive branch; in larger ships where a commander of the warfare specialization is appointed as the executive officer, afirst lieutenantis appointed as their deputy. The post offirst lieutenantin ashore establishmentcarries a similar responsibility to thefirst lieutenantof acapital ship.Colloquial terms in theRoyal Navyfor thefirst lieutenantinclude "number one","the jimmy "(or" jimmy the one ") and" James the First "(a back-formation referring toJames I of England).[1]The first lieutenant may hold the rank ofsub-lieutenant,lieutenant orlieutenant-commander.

United States

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First lieutenant
U.S. Army,U.S. Marine Corps,U.S. Air Force,andU.S. Space Forceinsignia of the rank of first lieutenant. Style and method of wear vary between the services.
Shoulder boards
CountryUnited States
Service branchU.S. Army
U.S. Marine Corps
U.S. Air Force
U.S. Space Force
Abbreviation1LT(Army)
1stLt(Marine Corps)
1st Lt(Air Force and Space Force)
Rank groupJunior officer
NATOrank codeOF-1
Pay gradeO-2
Next higher rankCaptain
Next lower rankSecond lieutenant
Equivalent ranksLieutenant (junior grade)

U.S. Army, U.S. Marine Corps, U.S. Air Force, and U.S. Space Force

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In theU.S. Army,U.S. Marine Corps,U.S. Air Force,andU.S. Space Force,a first lieutenant is a juniorcommissioned officer.It is just above the rank ofsecond lieutenantand just below the rank ofcaptain.It is equivalent to the rank oflieutenant (junior grade)in the otheruniformed services.

Promotion to first lieutenant is governed by Department of Defense policies derived from theDefense Officer Personnel Management Actof 1980. DOPMA guidelines suggest all "fully qualified" officers should be promoted to first lieutenant. A second lieutenant (gradeO-1) is usually promoted to first lieutenant (grade O-2) after 18 months in the Army or 24 months in the Marine Corps and Air Force. The difference between the two ranks is slight, primarily being experience and a higher pay grade. It is not uncommon to see officers moved to positions requiring more experience after promotion to first lieutenant. For example, in the Army and Marine Corps these positions can include leading a specialtyplatoon,or assignment as theexecutive officerfor acompany-sized unit (70–250 soldiers or marines). In the Air Force, a first lieutenant may be a flight commander or section's officer in charge with varied supervisory responsibilities, including supervision of as many as 100+ personnel, although in a flying unit, a first lieutenant is a rated officer (pilot, navigator, or air battle manager) who has just finished training for his career field and has few supervisory responsibilities.

U.S. Navy and U.S. Coast Guard

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In theU.S. NavyandU.S. Coast Guard,"first lieutenant" is the name of abilletand position title, rather than rank. Officers aboard early sailing ships were the captain and a number of lieutenants. The senior among those lieutenants was known as the first lieutenant, and would have assumed command if the captain were absent or incapacitated.[2]As modern ships have become more complex, requiring specialized knowledge of engineering, communications, and weapons, the "first lieutenant" is the officer in command of thedeck departmentresponsible forlinehandling duringmooringandunderway replenishment.On smaller ships, the officer of the "first lieutenant" billet holds the rank oflieutenant, junior gradeorensign.On larger vessels, the position of "first lieutenant" is held by a lieutenant or, in the case of extremely large warships such as cruisers oraircraft carriers,the position of "first lieutenant" may be held by alieutenant commanderor evencommander.However, onsubmarinesand in aircraft squadrons, where the deck department may only have a few junior sailors, the "first lieutenant" billet may be filled by a first-classpetty officerorchief petty officer.What is known in the U.S. Navy as the "first lieutenant division" is usually composed of junior sailors (E-3 and below) who are completing their ninety days of temporary assigned duty, or TAD, that all enlisted personnel are required to perform when initially assigned to a command. The primary mission of the division is servicing, cleaning, organizing and inventorying items within a command.[3][4]

U.S. Revenue Cutter Service

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The term "first lieutenant" had a dual meaning in theUnited States Revenue Cutter Service(known until 1894 as the United States Revenue-Marine). The position title of first lieutenant was held by a junior officer who was in charge of deck operations and gunnery. The rank of first lieutenant was the equivalent of lieutenant in the current rank structure of the U.S. Coast Guard, U.S. Navy,United States Public Health Service Commissioned Corps,andNational Oceanic and Atmospheric Administration Commissioned Officer Corps.The next senior officer ranking above first lieutenant was captain and the next two lower officer ranks were second andthird lieutenant,respectively. When the Revenue Cutter Service merged with theUnited States Life-Saving Serviceto form the U.S. Coast Guard in 1915, the rank of first lieutenant carried over into Coast Guard and remained in use until 1918, when the Coast Guard adopted the rank structure of the U.S. Navy.[5]

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Army

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Marines

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Air Force

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Space Force

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Notes

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Citations
  1. ^Partridge, p 612, p 621, p 884
  2. ^Hayes, David."Ranks & Duties".Historic Naval Fiction.Archivedfrom the original on 23 April 2018.Retrieved22 April2018.
  3. ^Barnebey, Matthew; "1st Lieutenant Division plays significant role in supporting base",Jax Air News
  4. ^Cutler and Cutler, p.90
  5. ^Cipra, Dave; "A History of Sea Service Ranks & Titles",Commandant's Bulletin,(May, June, July 1985), U.S. Coast Guard Historian's Office.
  6. ^Antigua & Barbuda Defence Force."Paratus"(PDF).Regional Publications Ltd. pp.12–13. Archived fromthe original(PDF)on 7 June 2022.Retrieved2 March2020.
  7. ^"Grados".argentina.gob.ar(in Spanish). Government of Argentina. 14 February 2018.Archivedfrom the original on 4 June 2023.Retrieved27 May2021.
  8. ^"Badges of rank"(PDF).defence.gov.au.Department of Defence (Australia).Archived(PDF)from the original on 1 September 2006.Retrieved31 May2021.
  9. ^ab"Ranks".Government of Botswana. Archived fromthe originalon 26 August 2016.Retrieved22 September2016.
  10. ^"Postos e Graduações - Exército".eb.mil.br(in Portuguese). Brazilian Army. Archived fromthe originalon 7 May 2021.Retrieved7 May2021.
  11. ^"Patente".fa.gov.cv(in Portuguese). Cape Verdean Armed Forces. Archived fromthe originalon 26 July 2022.Retrieved26 May2021.
  12. ^"Grados militares".minfar.gob.cu(in Spanish). Ministry of the Revolutionary Armed Forces (Cuba).Retrieved28 May2021.
  13. ^"Hærens Gradstegn"(PDF).forsvaret.dk(in Danish). Danish Defence. 2018.Archived(PDF)from the original on 9 November 2022.Retrieved26 May2021.
  14. ^"Insignias".mide.gob.do(in Spanish). Ministry of Defense (Dominican Republic). Archived fromthe originalon 26 February 2021.Retrieved28 May2021.
  15. ^"Sotilasarvot Puolustusvoimissa".puolustusvoimat.fi(in Finnish). Finnish Defence Forces.Archivedfrom the original on 4 July 2023.Retrieved26 May2021.
  16. ^"Pangkat Harian".tni.mil.id(in Indonesian). Indonesian National Armed Forces. Archived fromthe originalon 24 November 2020.Retrieved4 June2021.
  17. ^"Defense Act of 2008"(PDF).3 September 2008. p. 8.Archived(PDF)from the original on 1 December 2017.Retrieved20 November2017.
  18. ^"Grades".Armee.lu.Luxembourg Army.Archivedfrom the original on 20 December 2022.Retrieved24 February2018.
  19. ^"De rangonderscheidingstekens van de krijgsmacht"(PDF)(in Dutch). Ministry of Defence (Netherlands). 19 December 2016.Archived(PDF)from the original on 15 March 2023.Retrieved18 March2021.
  20. ^"Badges of Rank"(PDF).nzdf.mil.nz.New Zealand Defence Force.Archived(PDF)from the original on 28 July 2022.Retrieved28 July2022.
  21. ^"Insignias de Grados Militares".ejercito.mil.ni(in Spanish). Nicaraguan Armed Forces.Archivedfrom the original on 2 June 2021.Retrieved29 May2021.
  22. ^Cooke, Melinda W. (1990)."Chapter 5: National Security".In Hanratty, Dennis M.; Meditz, Sandra W. (eds.).Paraguay: A Country Study.Area Handbook Series (2nd ed.). Library of Congress. pp.216–217.LCCN89600299.Archivedfrom the original on 5 October 2021.Retrieved5 October2021.
  23. ^"Ranks and insignia".army.mil.ph.Philippine Army. Archived fromthe originalon 28 April 2010.Retrieved20 November2021.
  24. ^"U.S. Army Ranks".army.mil.United States Army.Archivedfrom the original on 30 November 2020.Retrieved27 May2021.
  25. ^Hudson, Rex A.; Meditz, Sandra W., eds. (1992). "Chapter 5. National Security".Uruguay: A Country Study(PDF)(2nd ed.). Federal Research Division, Library of Congress. pp.222–223.ISBN0-8444-0737-2.Archived(PDF)from the original on 14 March 2023.Retrieved13 June2021.
  26. ^"Grados de Oficiales Subalternos".ejercito.mil.ve.Government of Venezuela. 28 August 2017. Archived fromthe originalon 17 July 2019.
  27. ^"Ranks".marines.mil.U.S. Marine Corps.Archivedfrom the original on 14 July 2024.Retrieved13 June2021.
  28. ^"Anexo A".Boletim Oficial(in Portuguese).1(4). Government of Cape Verde:133–136. 18 January 2017.Archivedfrom the original on 26 May 2021.Retrieved4 October2021.
References used