A senior enlisted advisor (SEA) in the United States Armed Forces is the most senior enlisted service member in a unit, and acts as an advisor to the commanding officer. Formally, E-9 billets for the senior enlisted advisor are established at service unit (e.g., battalion, wing, or higher), command, major command, force, or fleet levels to the SEAs/CSELs of DoD Agencies and the Senior Enlisted Advisor to the Chairman of the Joint Chiefs of Staff. SEAs are also known as command senior enlisted leaders (CSEL). Always a non-commissioned officer, the SEA is the main link between the commanding officer and the enlisted service members under his or her charge.
Current senior enlisted advisors in the US military
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In the United States Army, the SEA for a battalion or larger-sized unit is usually a Command Sergeant Major. For Marine battalions and larger, a sergeant major typically takes the role. Navy ships and other commands will usually have a command, fleet, or force master chief petty officer (known as the Chief of the Boat on a submarine), while an Air Force or Space Force command chief master sergeant serves at Wing, Delta, Numbered Air Force, Field Operating Agency (FOA), Major Command, Field Command or at "Joint," DoD Agency levels.[citation needed]
In the United States Army and the United States Marine Corps, the senior enlisted advisor at the company or battery level (or other unit at similar echelon) is a first sergeant. In the Air Force and Space Force, the senior enlisted member of units smaller than those listed above for command chief master sergeant is either a chief master sergeant or a senior master sergeant and may also include a separate first sergeant authorization. In the Air Force a first sergeant can be an E7, E8 or E9, depending on size and mission of the unit, and is a temporary, special duty assignment.[citation needed]
International equivalents
Australia
In Australia the equivalent positions within the Royal Australian Navy (RAN), Australian Army and Royal Australian Air Force (RAAF) are Warrant Officer of the Navy (WO-N), Regimental Sergeant Major-Army (RSM-A) and Warrant Officer of the Air Force (WOFF-AF) respectively. On 20 June 2023 the Chief of the Defence Force General Angus Campbell announced the creation of the position of Senior Enlisted Advisor to the Chief of the Defence Force (SEAC) and that the outgoing Joint Operations Warrant Officer, Warrant Officer Ken Robertson would assume the position effective 1 July 2023.
| Service senior enlisted advisors | |||||
| Rank insignia | Position | Photo | Incumbent | Service branch | Start date |
|---|---|---|---|---|---|
 | Senior Enlisted Advisor to the Chief of the Defence Force |  | Warrant Officer Ken Robertson[1] |  Royal Australian Air Force | July 1, 2023 |
 | Warrant Officer of the Navy | | Warrant Officer Andrew Bertoncin[2] OAM |  Royal Australian Navy | December 16, 2022 |
 | Regimental Sergeant Major of the Army (Australia) | | Warrant Officer Kim Felmingham NSC, OAM |  Australian Army | July 1, 2022 |
| | Warrant Officer of the Air Force | | Warrant Officer Ralph Clifton | Royal Australian Air Force | December 1, 2022 |
Canada
The Senior Enlisted advisor of the Canadian Forces is the Canadian Forces Chief Warrant Officer. The Army, Navy and Air Force each have their own Chief Warrant Officer acting as Senior Enlisted advisor.
| Service senior enlisted advisors | ||||||
| Rank insignia | Position | Photo | Incumbent | Start date | Service branch | Ref. |
|---|---|---|---|---|---|---|
 | Canadian Forces chief warrant officer | | CPO1 Gilles Gregoire MMM, CD | 3 September 2020 |  Royal Canadian Navy | [3] |
 | Chief Petty Officer of the Navy | | Chief Petty Officer 1st Class David Steeves CD | May 2019 | Royal Canadian Navy | [4] |
 | Chief Warrant Officer of the Canadian Army | | Chief Warrant Officer J. M. Smith MMM, CD | 10 June 2021 |  Canadian Army | [5] |
 | Chief Warrant Officer of the Air Force | | Chief Warrant Officer W. J. Hall MMM, CD | 10 June 2021 |  Royal Canadian Air Force | [6] |
| Senior enlisted advisors Commands | ||||||
| | Canadian Forces Intelligence Command Chief Warrant Officer | | Chief Warrant Officer N.E. Belanger MMM, CD | 2019 | Royal Canadian Air Force | [7] |
NATO
NATO also has a number of Senior Enlisted Advisors taken from NATO members for various posts, including Senior Enlisted Advisor - NATO Allied Command Transformation
New Zealand
In New Zealand the equivalent positions within the Royal New Zealand Navy (RNZN), New Zealand Army and Royal New Zealand Air Force (RNZAF) are Warrant officer of the Navy (New Zealand) (WON), Sergeant Major of the Army (SMA) and Warrant Officer of the Air Force (WOAF) respectively. there is also the Senior position within HQNZDF of the Warrant Officer of the Defence Force (WODF)WODR
| Service senior enlisted advisors | |||||
| Rank insignia | Position | Photo | Incumbent | Service branch | Start date |
|---|---|---|---|---|---|
 | Warrant officer of the Navy (New Zealand) | | Warrant Officer Diver Lance Graham |  Royal New Zealand Navy | January 29, 2021 |
 | Sergeant Major of the Army (New Zealand) | | Warrant Officer class 1 Wiremu Moffitt[8] |  New Zealand Army | May 2020 |
 | Warrant Officer of the Air Force (New Zealand) | | Warrant Officer Toni Tate |  Royal New Zealand Air Force | |
South Africa
South Africa has a Warrant officer of the Defence Force, as well as Sergeant Majors of the Army, Air Force and Medical Services. The Navy equivalent is the Master at Arms of the Navy
| Service senior enlisted advisors | ||||||
| Rank insignia | Position | Photo | Incumbent | Service branch | Start date | Reference |
|---|---|---|---|---|---|---|
 | Warrant Officer of the South African National Defence Force | | Master Chief Warrant Officer Mothusi Kgaladi |  South African Army | October 2012 | [9] |
 | Master at Arms of the Navy | | Senior Chief Warrant Officer Matee Molefe |  South African Navy | February 1, 2018 | [10] |
| | Sergeant Major of the Army (South Africa) | _(cropped).jpg) | Senior Chief Warrant Officer Ncedakele Mtshatsheni | South African Army | February 1, 2017 (Acting from October 1, 2016 to January 31, 2017) | [11] |
| | Sergeant Major of the Air Force | | Senior Chief Warrant Officer Colin Stanton-Jones |  South African Air Force | December 1, 2018 | [12][failed verification] |
| | Warrant Officer of the South African Military Health Services | | Senior Chief Warrant Officer | South African Military Health Service | ||
United Kingdom
The Royal Navy has the Warrant Officer to the Royal Navy, the British Army has the Army Sergeant Major, the Royal Air Force has the Chief of the Air Staff's Warrant Officer and the Royal Marines the Corps Regimental Sergeant Major. In 2018, the Senior Enlisted Advisor to the Chiefs of Staff Committee was introduced.
| Service senior enlisted advisors | |||||
| Rank insignia | Position | Photo | Incumbent | Service branch | Start date |
|---|---|---|---|---|---|
 | Senior Enlisted Advisor to the Chiefs of Staff Committee | .jpg) | Warrant Officer Class One Glenn Haughton[13] OBE |  British Army | November 1, 2018 |
 | Warrant Officer of the Naval Service |  | Warrant Officer Class One Carl Steedman[14][15] |  Royal Navy | January 31, 2020 |
| | Army Sergeant Major | .jpg) | Warrant Officer Class One Paul Carney[16] | British Army | August 3, 2021 |
 | Warrant Officer of the Royal Air Force |  | Warrant Officer Jake Alpert[17][18] MBE |  Royal Air Force | October 2019 |
 | Corps Regimental Sergeant Major | Warrant Officer Class One Richard Angove[19] |  Royal Marines | July 2020 | |