SEAL Team Six
|Naval Special Warfare Development Group|
|Active||November 1980 – present|
|Country||United States of America|
|Branch||United States Navy|
|Type||Special operations force|
Special mission unit
|Size||1,787 personnel authorized:
|Part of|| United States Special Operations Command|
Joint Special Operations Command
United States Naval Special Warfare Command
|Headquarters||Dam Neck Annex|
NAS Oceana, Virginia Beach, Virginia, U.S.
|Nickname(s)||"SEAL Team Six", "DEVGRU", "Task Force Blue", "NSWDG"|
|Engagements||Invasion of Grenada|
TWA Flight 847 hijacking
Achille Lauro hijacking
Operation Prime Chance
Operation Just Cause
Somali Civil War
|Unit awards||Presidential Unit Citation|
The Naval Special Warfare Development Group (NSWDG), abbreviated as DEVGRU (DEVelopment GRoUp)[note A] and commonly known as SEAL Team Six, is the United States Navy component of the Joint Special Operations Command (JSOC). The unit is often referred to within JSOC as Task Force Blue. DEVGRU is administratively supported by Naval Special Warfare Command and operationally commanded by JSOC. Most information concerning DEVGRU is designated as classified information, and details of its activities are not usually commented on by either the United States Department of Defense or the White House. Despite the official name changes, "SEAL Team Six" remains the unit's widely recognized moniker.
DEVGRU and its Army and Air Force counterparts (Delta Force and 24th Special Tactics Squadron) are the U.S. military's primary Tier 1 special mission units tasked with performing the most complex, classified, and dangerous missions directed by the National Command Authority. DEVGRU conducts various specialized missions such as counterterrorism, hostage rescue, special reconnaissance, and direct action (short-duration strikes or small-scale offensive actions), often against high-value targets.
The origins of DEVGRU are in SEAL Team Six, a unit created in the aftermath of Operation Eagle Claw. During the Iran hostage crisis in 1979, Richard Marcinko was one of two U.S. Navy representatives for a Joint Chiefs of Staff task force known as the TAT (Terrorist Action Team). The purpose of the TAT was to develop a plan to free the American hostages held in Iran. In the wake of the disaster at the Desert One base in Iran, the Navy saw the need for a full-time counter-terrorist unit and tasked Marcinko with its design and development.
Marcinko was the first commanding officer of this new unit. At the time, there were two SEAL Teams, SEAL Team ONE and SEAL Team TWO. Marcinko named the unit SEAL Team Six in order to confuse Soviet intelligence as to the number of actual SEAL teams in existence. The unit's plankowners (founding members) were interviewed and hand-picked by Marcinko from throughout the UDT/SEAL community. SEAL Team Six was formally commissioned in November 1980, and an intense, progressive work-up training program made the unit mission-ready six months later. SEAL Team Six became the U.S. Navy's premier hostage rescue and counter-terrorism unit. It has been compared to the U.S. Army's elite Delta Force. Marcinko held the command of SEAL Team Six for three years, from 1980 to July 1983, instead of the typical two-year command in the Navy at the time. SEAL Team Six started with 75 shooters. The unit has virtually unlimited resources at its disposal. In 1984, Marcinko and a dozen members of SEAL Team Six would go on to form "Red Cell" (also known as OP-06D), a special unit designed to test the security of American military installations.
In 1987, SEAL Team Six was dissolved. A new unit named the "Naval Special Warfare Development Group" was formed, essentially as SEAL Team Six's successor. Reasons for the disbanding are varied, but the name SEAL Team Six is often used in reference to DEVGRU.
In 2010, during the attempted rescue of British aid worker Linda Norgrove from Taliban kidnappers in Afghanistan. She died as a result of injuries sustained from a SEAL's errant hand grenade. In 2017, Army Special Forces Staff Sergeant Logan Melgar died from trauma received during an apparent on-base hazing incident in Mali that resulted in the criminal prosecutions of two DEVGRU members and two Marine Raiders.
Recruitment, selection and training
In the early stages of creating SEAL Team Six, Marcinko was given a six-month window to produce the team. Had he failed to do so, the project would have been canceled. Consequentially, Marcinko had little time to create a proper selection course on par with Delta Force's process. To get around this, recruits were selected after assessing their Navy records, followed by individual interviews. Originally, applicants came only from the east coast and west coast SEAL teams and the Underwater Demolition Teams.
Although much of the training and recruitment is classified, there are some requirements and training exercises that are now public knowledge. The requirements to apply for DEVGRU states that applicants must be male, be 21 years old or older, have served at least 2 deployments on their previous assignments, and be eligible for Secret clearance. Candidates come from the East/West Coast SEAL teams, SEAL Delivery Vehicle (SDV) teams, the Special Boat teams, the Navy explosive ordnance disposal (EOD) teams, and Navy SARCs. Candidates must undergo physical screening, psychological testing and are then interviewed to deem whether they are suitable for assignment to NSWDG. Those who pass the stringent recruitment process will attend an eight-month selection and training course with the unit's training department known as "Green Team". The training course attrition rate is high, usually around 50%; during one selection course, out of the original 20 candidates, 12 completed the course. All candidates are watched closely by DEVGRU instructors and evaluated on whether they are suitable to join the individual squadrons. Howard E. Wasdin, a former member of SEAL Team Six said in a 2011 interview that 16 applied for SEAL Team Six selection course and two were accepted. Those who do not pass the selection phase are returned to their previous assignments and are able to try again in the future.
Like all special operations forces units that have an extremely intensive and high-risk training schedule, there can be serious injuries and deaths. SEAL Team Six/DEVGRU has lost several operators during training, including parachute accidents and close-quarters battle training accidents. It is presumed that the unit's assessment process for potential new recruits is different from what a SEAL operator experienced in his previous career, and much of the training tests the candidate's mental capacity rather than his physical condition. Every candidate chosen will have already completed their respective advanced training pipelines; Basic Underwater Demolitions/SEAL training, the Special Warfare Combatant-Craft Crewman training, Special Amphibious Reconnaissance Corpsman training, the Navy EOD training or Navy Dive School.
Candidates are put through a variety of advanced training courses led by civilian or military instructors. These can include free climbing, land warfare, advanced unarmed combat techniques, defensive and offensive advanced driving, advanced diving, communications and Survival, Evasion, Resistance and Escape training. Candidates are also taught how to pick locks on cars, doors, and safes. All candidates must perform at the top level during selection, and the unit instructors evaluate the candidate during the training process. Selected candidates are assigned to one of the Tactical Development and Evaluation Squadrons. Unlike regular SEAL Teams, SEAL Team Six operators can attend almost any other military course to receive further training depending on the unit's requirements.
Like Delta Force, live-fire marksmanship drills in both long-range and close-quarter battle drills are done with hostage roles being played by other students to help build the candidates' trust between each other.
DEVGRU is divided into color-coded line squadrons:
- Red Squadron (Assault)
- Blue Squadron (Assault)
- Gold Squadron (Assault)
- Silver Squadron (Assault)
- Black Squadron (Intelligence, Reconnaissance, & Surveillance)
- Gray Squadron (Mobility Teams, Transportation/Divers, QRF)
- Green Team (Selection/Training)
Each assault squadron, usually led by a commander, is divided into three troops of enlisted SEALs, often called assaulters. Each of these troops is commanded by a senior commissioned officer, which is usually a lieutenant commander. A troop chief also serves as an adviser to the troop commander and is the highest-enlisted SEAL in the troop, usually a master chief petty officer. A DEVGRU troop is further divided into smaller teams of SEALs. These individual teams of assaulters are led by senior enlisted SEALs; usually a senior chief petty officer, sometimes a chief petty officer. The rest of these teams are filled out with more chief petty officers, petty officers first class, and petty officers second class; each member with a respective role.
Each assault squadron also has a specific nickname. Examples include Gold Squadron's Crusaders, Red Squadron's Indians, Blue Squadron's Pirates, Silver Squadron's Knights, and Gray Squadron's Vikings. The assault squadrons are supported by a variety of support personnel, including cryptologists, communicators, EOD technicians, dog handlers, and sometimes airmen from the United States Air Force 24th Special Tactics Squadron, the Air Force's JSOC element.
According to the Government Accountability Office report on special operations forces, in the fiscal year of 2014, DEVGRU had a total of 1,787 authorized positions, of which 1,342 are military and 445 are civilian.
The following is a list of firearms known to be used by DEVGRU, but because of the unit's secretive nature, this list is not exhaustive.
- Heckler & Koch HK416 5.56x45mm (favored rifle among operators and usually modified, both significantly and varied to personal preference, with SOPMOD accessories such as suppressors, stocks, optics, lasers, lights and grips)
- Heckler & Koch MP7 4.6x30mm
- Colt Mk 18 CQBR 5.56x45mm
- M4A1 (various manufacturers) 5.56x45mm (not as commonly used, but still in inventory. Also customized with SOPMOD items)
- Sniper and anti-material rifles
- Colt Mk 12 SPR 5.56x45mm
- Knight's Armament Company SR-25 7.62x51mm
- Remington Model 700 "Mk 13 Mod. 5" .300 Winchester Magnum
- McMillan Firearms TAC-338 .338 Lapua
- McMillan TAC-50 "Mk 15 Mod. 0 .50 BMG
- Barrett M107A1 .50 BMG
- Side arms
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|Commander||Class||Time as CO||Note|
(SEAL Team Six)
|Richard Marcinko||UDT/R class 26||1980 to 1983|||
|Robert A. Gormly||UDT/R class 31||1983 to 1986|||
|Thomas E. Murphy||UDT/R class 35||1986 failed verification][||[additional citation(s) needed]|
|Richard Woolard||UDT/R class 38||failed verification][||[additional citation(s) needed]|
|Ronald E. Yeaw||UDT/R class 42||1990 to 1992|||
|Thomas G. Moser||BUD/S class 55||failed verification][|||
|Eric T. Olson||BUD/S class 76||failed verification][||[additional citation(s) needed]|
|Albert M. Calland III||BUD/S class 82||1997 to 1999|||
|Joseph D. Kernan||BUD/S class 117||1999 to 2003|||
|Edward G. Winters, III||BUD/S class 112||2003 to 2005|||
|Brian L. Losey||BUD/S class 126||2005 to 2007|||
|Scott P. Moore||BUD/S class 126||failed verification][||[additional citation(s) needed]|
|Perry F. Van Hooser||BUD/S class 137||2009 to 2011|||
|Hugh W. Howard III||BUD/S class 172||2011 to 2013|||
|Frank M. Bradley||BUD/S class 179||failed verification] to 2015[||[additional citation(s) needed]|
|Jeromy B. Williams||BUD/S class 191||2015 to 2017|| |
|Matthew J. Burns||2018 to 2020|||
|Christopher J. Domencic||2020 to present|||
Command of DEVGRU became a captain's billet, following Marcinko's departure.
Roles and responsibilities
DEVGRU's full mission is classified but is thought to include pre-emptive, pro-active counter-terrorist operations, counter-proliferation (efforts to prevent the spread of both conventional weapons and weapons of mass destruction), as well as the elimination or recovery of high-value targets from unfriendly nations. DEVGRU is one of a handful of U.S. Special Mission Units authorized the use of pre-emptive actions against terrorists and their facilities.
When SEAL Team Six was first created in 1980, it was devoted exclusively to counter-terrorism with a worldwide maritime responsibility; its objectives typically included targets such as ships, oil rigs, naval bases, coastal embassies, and other civilian or military bases that were accessible from the sea or inland waterways. On certain operations, small teams from SEAL Team Six were tasked with covertly infiltrating international high-risk areas to carry out reconnaissance or security assessments of U.S. military facilities and embassies to give advice on improvements in order to prevent casualties in an event of a terrorist attack. SEAL Team Six was disbanded in 1987, and its role, minus non-CT ship-boarding, which was given to the newly formed SEAL Team 8, given to the newly formed DEVGRU.
Since the start of war on terror, DEVGRU has evolved into a multi-functional special operations unit with a worldwide operational mandate. Such operations include the successful rescue of Jessica Buchanan and Poul Hagen Thisted, the attempted rescue of Linda Norgrove, the successful rescue of American doctor Dilip Joseph and in 1991, the successful recovery of Haitian President Jean-Bertrand Aristide and his family during a coup that deposed him.
The official mission of the currently operating Naval Special Warfare Development Group mission is "to provide centralized management for the test, evaluation, and development of equipment technology and Techniques, Tactics and Procedures for Naval Special Warfare". DEVGRU and the Army's Delta Force train and deploy together on counter-terrorist missions usually as part of a joint special operations task force (JSOTF). The Central Intelligence Agency's highly secretive Special Activities Center and more specifically its elite Special Operations Group often works with, and recruits from, DEVGRU. The combination of these units led ultimately to the killing of Al-Qaeda leader Osama bin Laden in Operation Neptune Spear.
- Sister JSOC units;
- Additional SEAL articles;
- Navy SEALs in popular culture
- List of Navy SEALs
- Other national maritime-based units
[note A]The designation "DEVGRU" may have been changed sometime before October 2010, with the subsequent designations being classified. The unit is still commonly known as "DEVGRU"
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