WW2 land, sea and air forces of the Allied Nations planning, training and operating together as a unified force on amphibious raids and landings against the enemy.

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Hundreds of thousands of visits each year to 200  web pages & 4000 photos. The Website has been published & hosted by Geoff Slee since 2000.

Around 40 D-Day Stories by veterans of the Navy, Army, Air Force and Marines who served in or alongside Combined Operations


On the flanks of Combined Operations.

Coastal Command was not part of Combined Operations but, on and around D-Day, it played an important role in support of the invasion fleet. German submarines (U Boats) were known to be concentrated in French ports and they were expected to attack the invasion fleet, particularly on the approaches to, and in, the western side of the English Channel.

[Photo; On the 10th of May, 1945, German Submarine 516 was spotted in the South Western Approaches by a Coastal Command Sunderland. The U-Boat was on the surface flying a surrender flag. HMS Cavendish later despatched a whaler with surrender instructions. © IWM (A 28553).]

Coastal Command's planes were equipped with radar and depth charges. Their task was to cover every part of the 'Operation Cork' area from southern Ireland to the mouth of the Loire, 20,000 square miles, every 30 minutes, day and night for an indefinite period... and it wasn't by accident that the interval was 30 minutes! This is one pilot's recollections.


I’m not quite sure what I was doing on the afternoon of Monday, June 5, 1944 - the day before D-day! I was certainly based at St. Eval, near Newquay in Cornwall, flying as a co-pilot with 547 Squadron of the Liberator Wing. We were part of 53, 206, 224 and 547 squadrons that formed 19 Group, Coastal Command. Our squadron flew Liberator Vs and VIs equipped with a powerful searchlight, the Leigh Light. The proud motto of the squadron was ‘Celer ad Caedendum’ - ‘Swift to Strike’.

The 30 squadrons of the Group included four Swordfish squadrons from the Royal Navy and three Liberator squadrons of the US Navy. They were to provide anti-submarine air defence for Operation Neptune, the amphibious phase of Operation Overlord - the great Combined Operation for the invasion of Europe in the west. The details and timing were top secret but both we and the Germans were expecting it. For us, the opposition were the 35 U-boats of the Group Landwirt, allocated to the anti-invasion task and based on Brest and the Biscay ports.

My captain was Flying Officer, "Charlie" Dingle, DFC, of the RCAF. He earned his decoration while a navigator in Bomber Command.

I’d obtained what was grandly called a second-class navigator’s certificate from No 1 General Reconnaissance School at Summerside, Prince Edward Island, Canada. We had two other fully trained navigators aboard, so we should never have got lost. Indeed we never did; that was not the problem.

[Photo; An Avro Anson of No. 502 Squadron being refuelled at Aldergrove in Northern Ireland, April 1940. © IWM (HU 106265).]

The crew had arrived from No 111 Operational Training Unit at Nassau in the Bahamas, in May 1944; five Britons and five Canadians. While there, we had flown Mitchell IIs and then Liberator Vs. We had already flown two operational patrols in February, when a U-boat was suspected to be north of the Bahamas. Mitchells and Liberators went out in force but there was no contact. We, like many others, trained in submarine detection, arrived at St Eval as a tiny part of the build-up for Neptune/Overlord.

Coastal Command, St Eval

The Squadron Commander at St Ival checked our competency with a trial flight, which we passed happily. During the second half of May, operational sorties were reduced to enable training exercises to take place, to permit crews to rest and to ensure the planes were brought to a high level of reliability and availability. This relaxation in the frequency of operational sorties was possible, because many U-boats were being held in the French ports in readiness for the anticipated invasion.

There had been considerable activity by enemy fighters, mainly Junkers JU 88s, against our aircraft in the Bay of Biscay and Channel, so our training included ‘fighter affiliation’, which was sparring with a Spitfire or Beaufighter. We soon learned that a combination of skilful ‘weaving’ and our eight 0.5 in. calibre machine-guns could beat off a single Spit or a single Beau but, if there were two of them, then we lost the duel. If we had the misfortune to meet two Ju 88s, we would rapidly retreat westwards!

D-Day - 1

On the morning of June 5, we flew to the 19 Group airfield at Angle, in Pembrokeshire, to bring five aircrew back to St. Eval. I think they were survivors of a Liberator crash in Wales, but I’m not certain. It was not a nice day. We did not know that Overlord, scheduled for that day, had been postponed because of the bad weather.

Low cloud over the Bristol Channel forced us to make a DTC (descent through cloud) to Angle; it is on such occasions that good navigators are worth their weight in gold! It is not a nice surprise, when you come out of a cloud, to find you are heading directly into a cliff or mountain!

 [Photo; B for Baker of 547 Squadron, being flown by the writer. Ready to go.]

That afternoon, we practiced depth-charge attacks in the Channel. It was raining and the cloud-base was still low, about 500 feet, so we undertook another DTC to reach our designated bombing area. We now know the Luftwaffe’s HQ in Paris had decided that Allied aircraft were unlikely to be operational that day.

On emerging from the murk, we were amazed at the awe inspiring sight below us. A great, grey armada of ships of all shapes and sizes sailing slowly eastwards on our port side. We had been ordered to an area in the Channel between the invasion fleet and the enemy. Why had we been ordered here? - to dupe the enemy into thinking that it was just routine training in progress or perhaps a sacrificial cow to attract enemy fighters within the range of the fleet’s guns or to give the convoys assurance that they had air support? In effect, we were riding shot-gun on the flank of the fleet. It was both surprising and spine-tingling.

The convoy was part of Task Force U out of Plymouth, Salcombe, Dartmouth and Brixham. They were transporting the 4th Infantry Division of the US First Army, to a rendezvous south of the Isle of Wight; from where they would sail to Utah Beach, the most westerly of the landing beaches.

D-Day +

On June 6, the 4th Division landed about a mile north-west of their planned landing site on Utah, dragged off course by a strong tidal current. Fortunately, the defences at their actual landing beach were less than those at their designated beach!

By the end of the day, over 23,000 men and 1,700 vehicles had landed on the beach with the loss of 160 men. By then the vanguard was four miles inland and in contact with the paratroopers of 101st Airborne Division. It was an extraordinarily successful result, which could certainly claim to be a very successful, large scale, Combined Operations.

The next day, the Coastal Command aircrews were briefed on the invasion and their role. The Group had already started its operational plan, codenamed Operation CORK, to protect the invasion force. Most operational U-boats were in French ports, including the impregnable submarine pens at St Nazaire at the mouth of the Loire.

The U Boats were expected to concentrate on the waters between the south of England and Normandy and their approaches. Our air patrols were designed to prevent attacks by constantly patrolling the area.

Coastal Command planes, using radar to identify enemy subs on the surface, would cover every part of the CORK area, from southern Ireland to the mouth of the Loire, 20,000 square miles, every 30 minutes, day and night for an indefinite period.

[Submarine Pens at St Nazaire on the River Loire.]

Thirty minutes was chosen because U-boats were believed to use, in a crash dive, the same amount of electrical energy as could be charged into the batteries in 30 minutes on the surface. If the U-boats were forced to crash dive every 30 minutes, they would gain nothing from charging their batteries while on the surface and they would arrive in the fighting-zone with their crews exhausted, little compressed air required to surface and flat batteries.

In the entire month of June, there were no losses to the invasion fleet known to have been caused by U-boats. This was a tremendous achievement in support of the greatest Combined Operation in history. It was good to have played a small part in it, even if the introduction had been unforeseen and somewhat uncertain.

Further Reading

There are around 300 books listed on our 'Combined Operations Books' page which can be purchased on-line from the Advanced Book Exchange (ABE) whose search banner checks the shelves of thousands of book shops world-wide. Type in or copy and paste the title of your choice or use the 'keyword' box for book suggestions. There's no obligation to buy, no registration and no passwords. Click 'Books' for more information.


In 1945, Flt Lt Salmon, the author of this page, was amongst the first to be posted to Tiger Force.  The force comprised three Groups of Liberators and Lancasters to fly VLR (very-long-range) missions against Japan. However, Tiger Force was disbanded after the surrender of Japan so Dr Salmon finished his service with Air Sea Rescue, 1347 Flight, flying Liberators from Chittagong in present day Bangladesh to China, over the Himalaya Mountains, affectionately known as 'the hump'.

News & Information

Memorial Maintenance

We have a small band of volunteers who take turns to visit the memorial each month, particularly during the growing season, to undertake routine maintenance such as weeding keeping the stones and slabs clear of bird dropping, lichen etc. and reporting on any issues. If you live near the National Memorial Arboretum and would like to find out more, please contact us.

Remember a Veteran

You can pay a personal tribute to veterans who served in, or alongside, the Combined Operations Command in WW2 by adding their details and optional photo to our Roll of Honour and They Also Served pages on this website.

Read the Combined Operations prayer.

Events and Places to Visit

To organisers: Reach the people who will be interested to know about your Combined Operations or war related event by adding it to our  webpage free of charge.

To everyone else: Visit our webpage for information on events and places to visit. If you know of an event or place of interest, that is not listed, please let us know.

To notify an event or place of interest, click here.

To visit the webpage click here.


Why not join the thousands who visit our Facebook page (click on icon above) about the Combined Operations Command in appreciation of our WW2 veterans.

See the 'slide shows' of the dedication ceremony and the construction of the memorial plus the 'On this day in 194?' feature where major Combined Ops events are highlighted on their anniversary dates with links to additional information.

You are welcome to add information, photos and comment or reply to messages posted by others.

Find Books of Interest 

Search for Books direct from our Books page. Don't have the name of a book in mind? Just type in a keyword to get a list of possibilities... and if you want to purchase you can do so on line through the Advanced Book Exchange (ABE). 5% commission goes into the memorial fund.

WW2 Combined Operations Handbook

This handbook was prepared for Combined Operations in the Far East. It illustrates the depth and complexity of the planning process necessary to ensure that the 3 services worked together as a unified force.

Submit your D-Day Story

2019 marks the 75th anniversary of the D-Day landings and, to mark the occasion, The D-Day Story is asking the British public to share their experiences from the largest invasion ever assembled. Whether it’s an account of the day from a veteran or a tale passed down by a relative, we’re keen to showcase never-before-heard stories for an exciting campaign to be launched later in the year.


The Gazelle Helicopter Squadron Display Team

The Gazelle Squadron is a unique team of ex-British Military Gazelle helicopters in their original military colours and with their original military registrations. The core team includes four Gazelles, one from each service; The Royal Navy, The Royal Marines, The Army Air Corps and The Royal Air Force. A fifth Gazelle in Royal Marines colours will provide intimate support for the team. Their crest includes the Combined Operations badge. The last, and possibly, only time the badge was seen on an aircraft was in the early mid 40s. A photo of the Hurricane concerned is included in the 516 Squadron webpage.

New to Combined Ops?

Visit Combined Operations Explained for an easy introduction to the subject.


About Us?

Background to the website and memorial project, and a look to the future; plus other small print stuff and website accounts etc. Click here for information.


Legasee Film Archive

As part of an exciting social history project, the film company Legasee has recorded interviews with veterans from any conflicts. These  films are now available on line. www.legasee.org.uk


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