Sappers Divers Group

Portuguese Navy's diving unit
Divers Group
Agrupamento de Mergulhadores
Active1966 (sappers divers sections)
1973 (sappers divers detachments)
2004 (Divers Group)
Country Portugal
Branch Portuguese Navy
TypeClearance diver
Part ofSubsurface Squadron
BaseLisbon Naval Base
Nickname(s)AGRUMERG
Motto(s)IN AQUA OPTIMI
Engagements
Commanders
Current
commander
Commander (Capitão de Fragata)
Military unit

The Divers Group (AGRUMERG, Portuguese: Agrupamento de Mergulhadores) is the Portuguese Navy's sapper clearance diver unit.[1] It was created in 2004 through the grouping of the several already existing diving subunits, to exercise administrative, logistical and operational control and management, maritime special operations capable, over all diver units and personnel. It groups under a single command, all previously existing Sappers Divers Units (EOD/Combat Divers, Salvage/SAR, MCM/MW) and Services (Training and Logistics).

Organization

The Divers Group is a command, within the Portuguese Navy Subsurface Squadron, and is commanded by a senior naval officer. It includes:

  • Commander
  • Operations Cell
  • Diving Service (Serviço de Mergulho) - Logistics
  • Divers School (Escola de Mergulhadores) - Training
  • Sappers Divers Detachment No. 1 (Destacamento de Mergulhadores Sapadores N.º1 - DMS1) - EOD / Combat Divers
  • Sappers Divers Detachment No. 2 (Destacamento de Mergulhadores Sapadores N.º2 - DMS2) - Salvage / SAR
  • Sappers Divers Detachment No. 3 (Destacamento de Mergulhadores Sapadores N.º3 - DMS3) - Mine countermeasures / Mine warfare

History

The first notice of the employment of combat divers by Portugal occurred in 1580, during the War of the Portuguese Succession. In that occasion, Portuguese combat divers attacked the enemy Spanish ships that were in the Tagus, in order to damage their hulls.

In the scope of the Overseas war in Portuguese Guinea, the Portuguese Navy detected the use of naval mines by the enemy forces of the PAIGC. To deal with that threat, in 1966, the No. 1 Sappers Divers Section was created and deployed to Guinea. In 1968, the No. 2 Sappers Divers Section is also created.

In 1972, the two sappers divers sections are transformed in two larger sappers divers detachments (DMS, destacamentos de mergulhadores sapadores). The DMS continue to be assigned to the Navy's Guinea Maritime Defense Command due to the operational imperatives of its activities.

The DMS were disbanded in 1975, after the end of the Overseas War. Afterwards the operational activity of the divers was assigned to the Navy's Divers School.

The Sappers Divers Detachment No. 1 (DMS1) was reactivated on 1 June, 1988, because there was a need of an operational unit specially dedicated to the military diving area. Public interest activities, namely salvage diving and air-sea rescue were still assigned to the Divers School.

When, on 1 January, 1995, the DMS2 was reactivated (with twenty elements instead of thirteen), all operational activity was assigned to the detachments, with Divers School becoming only dedicated to the instruction activities.

In 2004, the Sappers Divers Group is created, grouping the DMS1, the DMS2 and the Divers School under a single Command.

A divers unit focused in mine warfare is created in 2008, this being the Sappers Divers Detachment No. 3 (DMS-MW).

The Sappers Divers Group is under the command of the Portuguese Navy Submarine Squadron.

Missions

The missions assigned to the Sappers Divers Detachments, under the Divers Group command, are:

  • Air-sea rescue.
  • CBRNE consequence management.
  • Co-operation in the control of activities linked to the seabed.
  • Co-operation in the scientific study of the sea.
  • Defusing and disposal of bombs, IED, land mines, naval mine, and unexploded ordnance.
  • Maritime military operations.
  • Maritime military logistics operations management.
  • Military and civilian underwater search and recovery.
  • Military engineering operations.
  • Naval mine warfare operations.
  • NBCR on operations in contaminated environments.
  • Route clearance operations search and destroy IEDs.
  • Salvage diving operations, namely survey, repair and recuperation of naval units.
  • Support Special Actions Detachment (Destacamento de Ações Especiais : DAE) operations.
  • Tactical coastal reconnaissance and obstacle clearing for the landing of amphibious forces.
  • Underwater defensive and offensive operations, at sea, in the shoreline, in river access, and in port facilities, against enemy positions and naval assets.

High-profile operations conducted by the unit:

References

  1. ^ Portugal Army Weapon Systems Handbook - Strategic Information and Weapon Systems. International Business Publications, USA. 2017-10-27. p. 49. ISBN 978-1-4330-6174-5.

External links

  • Picture gallery
  • v
  • t
  • e
  • Category
Leadership
Structure & UnitsShips
Submarines
  • Tridente class
Frigates
  • Bartolomeu Dias class
  • Vasco da Gama class
Corvettes
  • Baptista de Andrade class
  • João Coutinho class
Patrol vessels
  • Viana do Castelo class
  • Centauro class
  • Argos class
  • Tejo class
  • Rio Minho
Survey vessels
  • Dom Carlos I class
  • Andrómeda class
Sailing vessels
  • NRP Sagres
  • UAM Creoula
Training
  • Naval School
History & Culture
Other topics
  • v
  • t
  • e
Basic equipment
Breathing gas
Buoyancy and
trim equipment
Decompression
equipment
Diving suit
Helmets
and masks
Instrumentation
Mobility
equipment
Safety
equipment
Underwater
breathing
apparatus
Open-circuit
scuba
Diving rebreathers
Surface-supplied
diving equipment
Diving
equipment
manufacturers
Access equipment
Breathing gas
handling
Decompression
equipment
Platforms
Underwater
habitat
Remotely operated
underwater vehicles
Safety equipment
General
Activities
Competitions
Equipment
Freedivers
Hazards
Historical
Organisations
Occupations
Military
diving
Military
diving
units
Underwater
work
Salvage diving
  • SS Egypt
  • Kronan
  • La Belle
  • SS Laurentic
  • RMS Lusitania
  • Mars
  • Mary Rose
  • USS Monitor
  • HMS Royal George
  • Vasa
Diving
contractors
Tools and
equipment
Underwater
weapons
Underwater
firearm
Specialties
Diver
organisations
Diving tourism
industry
Diving events
and festivals
Diving
hazards
Consequences
Diving
procedures
Risk
management
Diving team
Equipment
safety
Occupational
safety and
health
Diving
disorders
Pressure
related
Oxygen
Inert gases
Carbon dioxide
Breathing gas
contaminants
Immersion
related
Treatment
Personnel
Screening
Research
Researchers in
diving physiology
and medicine
Diving medical
research
organisations
Law
Archeological
sites
Underwater art
and artists
Engineers
and inventors
Historical
equipment
Diver
propulsion
vehicles
Military and
covert operations
  • Raid on Alexandria (1941)
  • Sinking of the Rainbow Warrior
Scientific projects
Awards and events
Incidents
Dive boat incidents
  • Sinking of MV Conception
Diver rescues
Early diving
Freediving fatalities
Offshore
diving incidents
  • Byford Dolphin diving bell accident
  • Drill Master diving accident
  • Star Canopus diving accident
  • Stena Seaspread diving accident
  • Venture One diving accident
  • Waage Drill II diving accident
  • Wildrake diving accident
Professional
diving fatalities
Scuba diving
fatalities
Publications
Manuals
  • NOAA Diving Manual
  • U.S. Navy Diving Manual
  • Basic Cave Diving: A Blueprint for Survival
  • Underwater Handbook
  • Bennett and Elliott's physiology and medicine of diving
  • Encyclopedia of Recreational Diving
  • The new science of skin and scuba diving
  • Professional Diver's Handbook
  • Basic Scuba
Standards and
Codes of Practice
General non-fiction
Research
Dive guides
Training and registration
Diver
training
Skills
Recreational
scuba
certification
levels
Core diving skills
Leadership skills
Specialist skills
Diver training
certification
and registration
organisations
Commercial diver
certification
authorities
Commercial diving
schools
Free-diving
certification
agencies
Recreational
scuba
certification
agencies
Scientific diver
certification
authorities
Technical diver
certification
agencies
Cave
diving
Military diver
training centres
Military diver
training courses
Surface snorkeling
Snorkeling/breath-hold
Breath-hold
Open Circuit Scuba
Rebreather
  • Underwater photography
Sports governing
organisations
and federations
Competitions
Pioneers
of diving
Underwater
scientists
archaeologists and
environmentalists
Scuba record
holders
Underwater
filmmakers
and presenters
Underwater
photographers
Underwater
explorers
Aquanauts
Writers and journalists
Rescuers
Frogmen
Commercial salvors
Diving
physics
Diving
physiology
Decompression
theory
Diving
environment
Classification
Impact
Other
Deep-submergence
vehicle
  • Aluminaut
  • DSV Alvin
  • American submarine NR-1
  • Bathyscaphe
    • Archimède
    • FNRS-2
    • FNRS-3
    • Harmony class bathyscaphe
    • Sea Pole-class bathyscaphe
    • Trieste II
  • Deepsea Challenger
  • Ictineu 3
  • JAGO
  • Jiaolong
  • Konsul-class submersible
  • Limiting Factor
  • Russian submarine Losharik
  • Mir
  • Nautile
  • Pisces-class deep submergence vehicle
  • DSV Sea Cliff
  • DSV Shinkai
  • DSV Shinkai 2000
  • DSV Shinkai 6500
  • DSV Turtle
  • DSV-5 Nemo
Submarine rescue
Deep-submergence
rescue vehicle
Submarine escape
Escape set
Special
interest
groups
Neutral buoyancy
facilities for
Astronaut training
Other