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
ODU RT

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
FIA2026 animated banner
Dstl assesses robotic systems in hazardous incident recovery trial

Defence

Dstl assesses robotic systems in hazardous incident recovery trial

17 April 2026

In a ‘real life’ scenario played out in an empty shopping unit, the Defence Science and Technology Laboratory (Dstl) has tested the ability of robotic and autonomous systems to navigate through a building and detect, sample and remediate (clean) a contaminated environment.

QinetiQ pays aerial tribute to iconic Spitfire

Defence Events

QinetiQ pays aerial tribute to iconic Spitfire

17 April 2026

The QinetiQ operated ETPS test pilot school based at MoD Boscombe Down has taken part in the historic Spitfire90 commemorative tour, as the only civilian-registered participants in the nine-day national flight schedule.

SitaWare Headquarters introduces Joint Fires and Targeting capabilities

Defence

SitaWare Headquarters introduces Joint Fires and Targeting capabilities

16 April 2026

Systematic has introduced within SitaWare Headquarters 6.22, a dedicated Targeting Application that brings the targeting process into the same C4ISR environment used for operational planning, situational awareness and mission execution.

Thales launches TopStar Smart Receiver

Defence

Thales launches TopStar Smart Receiver

16 April 2026

Thales has launched its TopStar Smart Receiver, a three-in-one ultra-compact solution providing land forces with resilient positioning, navigation and timing capabilities, while maintaining radio communications in increasingly contested electronic warfare environments.

Advertisement
ODU RT
UK to deliver large drone package to Ukraine

Defence Security

UK to deliver large drone package to Ukraine

15 April 2026

The UK has announced the biggest ever drone package for Ukraine, delivering at least 120,000 drones for Ukraine this year and driving growth and jobs across the UK.

Boeing secures UK Apache and Chinook support contract

Defence

Boeing secures UK Apache and Chinook support contract

15 April 2026

Boeing Defence UK has been awarded an historic £879 million Rotary Wing Enterprise contract from the Ministry of Defence (MoD), to deliver long term maintenance and support for the UK’s Apache and Chinook fleets.

Advertisement
ODU RT
Advertisement
FIA2026 animated banner