Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • Defence Secretary praises 50 years of CASD as new submarine named

Defence Events

Defence Secretary praises 50 years of CASD as new submarine named

Defence Secretary Penny Mordaunt has announced the fourth Dreadnought submarine as HMS King George VI ahead of a special service at Westminster Abbey today to recognise the Royal Navy’s Continuous at Sea Deterrent (CASD) over the past 50 years.

Above: Concept image of a Dreadnought submarine.
Crown copyright

The Defence Secretary has announced the fourth Dreadnought submarine as HMS King George VI ahead of a special service at Westminster Abbey today to recognise the Royal Navy’s Continuous at Sea Deterrent (CASD) over the past 50 years.

Advertisement
ODU RT

Since April 1969, a Royal Navy ballistic missile submarine has patrolled every single day, without interruption, providing the nation’s deterrent and helping keep the UK and our allies safe. This is the UK’s longest sustained military operation ever undertaken and is known as Operation Relentless.

Defence Secretary Penny Mordaunt said: "Operation Relentless has seen generations of submariners from HMS Resolution to HMS Vengeance on constant watch, for every minute of every day for the last five decades. This is the longest military operation we have ever undertaken and continues right this minute deep under the sea.

"We pay tribute to those incredible crews, their supportive families, the Royal Navy and the thousands of industry experts who will continue to sustain this truly national endeavour for many years to come."

CASD50 provides a chance to not only remember the national endeavour of the past half century but to look to the next-generation of ballistic missile submarines, the Dreadnought class. This will consist of four boats helping to ensure the security of generations to come. The Dreadnought-class are expected to enter service in the early 2030s, helping to maintain Operation Relentless.

Prior to the service at Westminster Abbey, First Sea Lord, Admiral Sir Philip Jones, announced that HMS King George VI will now join HMS Dreadnought, Valiant and Warspite as the fourth Dreadnought submarine. HMS King George VI makes history as it will become the first naval vessel to bear that royal title. King George VI had strong naval connections having spent time at the Royal Naval College, Osbourne followed by Dartmouth. He then went on to earn a mention in despatches for his service on HMS Collingwood during the Battle of Jutland.

Advertisement
Security & Policing Rectangle

First Sea Lord Admiral Sir Philip Jones said: "For half a century, the Royal Navy has always had at least one ballistic missile submarine at sea on patrol, safeguarding the ultimate guarantor of our country’s security – and that of our NATO allies too. Today, as we pause to reflect on the significance of this 50-year milestone in our proud history of submarine operations, and the national endeavour that underpins it, we are also looking to our future.

"Today’s announcement that the fourth of our future ballistic missile submarine fleet will be named HMS King George VI follows a long tradition of naming capital ships after our country’s monarchs; together with her sisters Dreadnought, Valiant and Warspite these submarines represent the cutting edge of underwater capability and will meet the awesome challenge of continuous at sea deterrence into the second half of the 21st century."

It is estimated that around 30,000 people are involved in building and supporting nuclear submarines across the UK. Maintaining this skilled workforce helps to invest millions of pounds into local communities and ensures the UK continues to boast a highly-skilled workforce in this sector.


 

Advertisement
Babcock LB Babcock LB
Serco secures Asia Pacific defence contracts

Defence

Serco secures Asia Pacific defence contracts

7 January 2026

Serco has reinforced its position in Asia Pacific with contract wins and extensions in the defence sector in Australia, including a successful rebid of the HMAS Watson Navy Synthetic Warfare Training contract for the Royal Australian Navy.

Babcock and Frankenburg Technologies partner on counter-drone system

Defence

Babcock and Frankenburg Technologies partner on counter-drone system

7 January 2026

Babcock has signed a Memorandum of Understanding (MoU) with Frankenburg Technologies to explore the development of a new and affordable air defence system in response to the increase of one-way attack drones.

Cranfield University continues collaboration with HMGCC

Defence Security

Cranfield University continues collaboration with HMGCC

7 January 2026

Cranfield University is continuing to help address national security engineering challenges through an ongoing collaboration with HMGCC (His Majesty’s Government Communications Centre) and its Co-Creation initiative: a partnership with Dstl (Defence Science and Technology Laboratory).

IFS to acquire Softeon

Aerospace Defence Security

IFS to acquire Softeon

6 January 2026

IFS today announced that it has entered into a definitive agreement to acquire Softeon, a provider of cloud-native Warehouse Management, Warehouse Execution and Distributed Order Management solutions.

Advertisement
ODU RT
UK and Germany sign £52m advanced artillery contract

Defence

UK and Germany sign £52m advanced artillery contract

6 January 2026

Military artillery that can fire on the move and hit targets 70 kilometres away has been secured under a major £52 million contract between the UK and Germany.

Defence Medical Services awards Project Mercury contract to Avenue3

Defence Security

Defence Medical Services awards Project Mercury contract to Avenue3

6 January 2026

A £2.5 million contract to develop a Deployed Clinical Record system to enable defence clinicians to access military medical records anywhere in the world - Project Mercury - has been awarded by the Defence Medical Services, to Leeds based digital health-care solutions consultancy Avenue3.

Advertisement
Security & Policing Rectangle
Advertisement
General Atomics LB