Operation Wilfred was a British naval operation during the
Second World War
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
that involved the
mining
Mining is the Resource extraction, extraction of valuable geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot be grown through agriculture, agricultural processes, or feasib ...
of the channels between
Norway
Norway, officially the Kingdom of Norway, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of the Kingdom of ...
and its offshore islands to prevent the transport of
Swedish iron ore through neutral Norwegian waters. The
Allies
An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not an explicit agreement has been worked out among them. Members of an alliance are calle ...
assumed that Wilfred would provoke German retaliation in Norway and prepared
Plan R4 to occupy
Narvik
() is the third-largest List of municipalities of Norway, municipality in Nordland Counties of Norway, county, Norway, by population. The administrative centre of the municipality is the Narvik (town), town of Narvik. Some of the notable villag ...
,
Stavanger
Stavanger, officially the Stavanger Municipality, is a city and municipalities of Norway, municipality in Norway. It is the third largest city and third largest metropolitan area in Norway (through conurbation with neighboring Sandnes) and the ...
,
Bergen
Bergen (, ) is a city and municipalities of Norway, municipality in Vestland county on the Western Norway, west coast of Norway. Bergen is the list of towns and cities in Norway, second-largest city in Norway after the capital Oslo.
By May 20 ...
and
Trondheim
Trondheim ( , , ; ), historically Kaupangen, Nidaros, and Trondhjem (), is a city and municipality in Trøndelag county, Norway. As of 2022, it had a population of 212,660. Trondheim is the third most populous municipality in Norway, and is ...
. On 8 April 1940, the operation was partly carried out but was overtaken by events, when the Germans began
Operation Weserübung
Operation Weserübung ( , , 9 April – 10 June 1940) was the invasion of Denmark and Norway by Nazi Germany during World War II. It was the opening operation of the Norwegian Campaign.
In the early morning of 9 April 1940 (, "Weser Day"), Ge ...
on 9 April, the invasion of Norway and
Denmark
Denmark is a Nordic countries, Nordic country in Northern Europe. It is the metropole and most populous constituent of the Kingdom of Denmark,, . also known as the Danish Realm, a constitutionally unitary state that includes the Autonomous a ...
, which began the
Norwegian Campaign.
Background
British plans

The British War cabinet expended considerable energy on plans for land operations in Scandinavia during the winter of 1939–1940. The Winter War (30 November 1939 – 13 March 1940) between the Soviet Union and Finland could be used as a pretext. The deputy permanent under-secretary at the
Foreign Office
Foreign may refer to:
Government
* Foreign policy, how a country interacts with other countries
* Ministry of Foreign Affairs, in many countries
** Foreign Office, a department of the UK government
** Foreign office and foreign minister
* United ...
,
Orme Sargent
Sir Harold Orme Garton Sargent (31 October 1884 – 23 October 1962) was a British diplomat and civil servant.
Early life and career
Sargent was born Giles Orme Sargent; his parents changed his name after they registered his birth. He was educa ...
, wrote
and advocated the seizure of the Lapland iron ore fields to prevent a Finnish defeat and German control of
Sweden
Sweden, formally the Kingdom of Sweden, is a Nordic countries, Nordic country located on the Scandinavian Peninsula in Northern Europe. It borders Norway to the west and north, and Finland to the east. At , Sweden is the largest Nordic count ...
. German iron-ore imports from Sweden were about in 1938; about had been denied Germany by the Allied blockade since 1939. In the summer the ore was sent from
Luleå
Luleå ( , , locally ; ; ) is a Cities in Sweden, city on the coast of northern Sweden, and the County Administrative Boards of Sweden, capital of Norrbotten County, the northernmost county in Sweden. Luleå has 48,728 inhabitants in its urban ...
in the
Gulf of Bothnia
The Gulf of Bothnia (; ; ) is divided into the Bothnian Bay and the Bothnian Sea, and it is the northernmost arm of the Baltic Sea, between Finland's west coast ( East Bothnia) and the northern part of Sweden's east coast ( West Bothnia an ...
but the winter ice closed this route and ore was sent instead by rail to
Narvik
() is the third-largest List of municipalities of Norway, municipality in Nordland Counties of Norway, county, Norway, by population. The administrative centre of the municipality is the Narvik (town), town of Narvik. Some of the notable villag ...
, for shipment to Germany.
At the
Admiralty,
Winston Churchill
Sir Winston Leonard Spencer Churchill (30 November 1874 – 24 January 1965) was a British statesman, military officer, and writer who was Prime Minister of the United Kingdom from 1940 to 1945 (Winston Churchill in the Second World War, ...
, the
First Lord of the Admiralty
First Lord of the Admiralty, or formally the Office of the First Lord of the Admiralty, was the title of the political head of the English and later British Royal Navy. He was the government's senior adviser on all naval affairs, responsible f ...
, wanted an offensive policy, particularly after the
''Altmark'' incident (16–17 February 1940). British ships had entered Norwegian territorial waters to rescue merchant sailors being held on ''Altmark'' and taken to Germany after being taken prisoner when their ships had been sunk by the heavy cruiser . On 20 February 1940, Churchill ordered the Admiralty urgently to prepare a minelaying plan which "being minor and innocent may be called Wilfred". Churchill thought that a landing in Norway, without Norwegian acquiescence, was a mistake, even if there was no more than a minor exchange of fire with the Norwegian army. Churchill held that laying mines in the (Inner Leads) in Norwegian waters, could be done without a confrontation with the
Royal Norwegian Navy
The Royal Norwegian Navy () is the branch of the Norwegian Armed Forces responsible for navy, naval operations of Norway, including those of the Norwegian Coast Guard. , the Royal Norwegian Navy consists of approximately 3,700 personnel (9,450 i ...
(). The War Cabinet and the
Ministry of Economic Warfare hesitated to support hostilities in Norwegian waters, because of the effect that they could have on British imports from Norway and Sweden. On 29 February, the prime Minister,
Neville Chamberlain
Arthur Neville Chamberlain (; 18 March 18699 November 1940) was a British politician who served as Prime Minister of the United Kingdom from May 1937 to May 1940 and Leader of the Conservative Party (UK), Leader of the Conservative Party from ...
, decided to wait and see.
Landing plans

Despite the uncertainty, the Allied army high commands worked on plans for land operations in Scandinavia. In
Operation Avonmouth, three battalions of and a British infantry brigade, with three ski companies attached, were to land at Narvik and advance along the railway to take over the iron ore fields in
Lapland. The French and Foreign Legionnaires were to continue east towards Finland but keep away from the Red Army and risk being cut off by a German force when the ice in the Gulf of Bothnia thawed.
Operation Stratford, was a plan for five battalions of British infantry to garrison Stavanger, Bergen and Trondheim to deny the Germans bridgeheads. In
Operation Plymouth three divisions were to stand ready to cross to Trondheim to aid Sweden if the Swedish government requested it. French ships and troops assembled in the French
Channel Ports and
Brest. Up to 100,000 British and 50,000 French troops with generous air and naval support might participate, the main effort being in Norway, with 10,000 to 15,000 troops advancing into Finland. German counter-landings were expected in southern Norway up to Stavanger. The latest date that the Gulf of Bothnia could be expected to remain frozen was 3 April.
The French view was that an operation in Scandinavia had many advantages it would divert German troops from the
Maginot Line
The Maginot Line (; ), named after the Minister of War (France), French Minister of War André Maginot, is a line of concrete fortifications, obstacles and weapon installations built by French Third Republic, France in the 1930s to deter invas ...
and if iron ore deliveries to Germany were prevented it would have a severe effect on the German war economy. The British would have to carry the naval burden and a few thousand troops of the
French Foreign Legion
The French Foreign Legion (, also known simply as , "the Legion") is a corps of the French Army created to allow List of militaries that recruit foreigners, foreign nationals into French service. The Legion was founded in 1831 and today consis ...
would show the French government's determination to fight. Admiral
Gabriel Auphan, the Deputy Chief of the Maritime Staff () wrote later,
and the Prime Minister,
Edouard Daladier, wanted swift action. The Norwegians had been warned in January and could be ignored during a "swift occupation of the main Norwegian ports and landing of an expeditionary force". Having decided to wait, the British on 1 March resolved to try to obtain permission from the Norwegians and the Swedes to allow the transit of a military force to Finland via Narvik, Kiruna and Gällivare but the Norwegian prime minister rejected the request on 4 March, the Swedish prime minister having rejected the request the day before. On 11 March the French told the War Cabinet that Daladier would be forced to resign over the Finland question, unless something was done. The British agreed to dispatch troops to Narvik regardless of whether the Norwegians acquiesced.
Plan R3

In Plan R3, Major-General
Pierse Macksey, the commander of the
49th (West Riding) Infantry Division, was made land commander and Admiral
Edward Evans the naval commander, with Audet in command of the . The British commanders were briefed on 12 March that they were to land a force at Narvik, assist Finland and deny Russia and Germany the Swedish iron ore fields for as long as they could. The force was only to attempt a landing if the Norwegians made only token resistance. Force was not to be used except in self-defence. The plan caused confusion in the War Cabinet because several partly-trained British divisions were to be imposed on Norway and Sweden.
Reaching Finland was unlikely and the force might have to re-embark if the Norwegians resisted. During 12 March the War Cabinet decided only to implement the Narvik landing and seize the railway terminus. On 13 March the embarkation began, only to be cancelled that day on the news of the Finnish capitulation to the USSR. Churchill and the
Chief of the Imperial General Staff
Chief of the General Staff (CGS) has been the title of the professional head of the British Army since 1964. The CGS is a member of both the Chiefs of Staff Committee and the Army Board; he is also the Chair of the Executive Committee of the A ...
, General Sir
Edmund Ironside tried to get permission to land at Narvik but were rebuffed, most of the troops for Operation Avonmouth being sent to France and the sent to their base. The French ships resumed their normal duties and the British ships went back to the
Northern Patrol
The Northern Patrol, also known as Cruiser Force B and the Northern Patrol Force, was a naval force of the Royal Navy during the world wars. The Northern Patrol was part of the British "distant" Blockade of Germany (1914–1919). Its main task wa ...
.
Operation Royal Marine
By late March 1940, after the resignation of Daladier and the appointment of
Paul Reynaud as prime minister of France, at the
Supreme War Council, Chamberlain presented Operation Royal Marine, a scheme to put floating mines into the
Rhine
The Rhine ( ) is one of the List of rivers of Europe, major rivers in Europe. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein border, then part of the Austria–Swit ...
to disrupt river traffic downriver in the
Rhineland
The Rhineland ( ; ; ; ) is a loosely defined area of Western Germany along the Rhine, chiefly Middle Rhine, its middle section. It is the main industrial heartland of Germany because of its many factories, and it has historic ties to the Holy ...
. The French agreed to the plan provided that it was linked to mining operations in the Norwegian Leads. By 1 April a warning would have been sent to the Norwegian and Swedish governments that the Allies would stop the passage of German iron-ore ships. A few days later mines would be laid in the Leads and operations against German shipping would be undertaken as floating mines were to be placed in the Rhine and other German rivers. Churchill and Ironside managed to get a decision that British and French troops were to go to Narvik and advance to the frontier with Sweden. The French Admiral Darlan saw the landing plan as a catalyst to bring out the German fleet and sent orders that the French forces which had just been disbanded to be reassembled; the
War Office
The War Office has referred to several British government organisations throughout history, all relating to the army. It was a department of the British Government responsible for the administration of the British Army between 1857 and 1964, at ...
began to gather the forces that had dispersed after the cancellation of Operation Stratford and Operation Avonmouth.
German plans
On 3 April, the British began to receive reports of an accumulation of shipping and troops in the Baltic German ports of
Rostock
Rostock (; Polabian language, Polabian: ''Roztoc''), officially the Hanseatic and University City of Rostock (), is the largest city in the German States of Germany, state of Mecklenburg-Vorpommern and lies in the Mecklenburgian part of the sta ...
,
Stettin
Szczecin ( , , ; ; ; or ) is the capital and largest city of the West Pomeranian Voivodeship in northwestern Poland. Located near the Baltic Sea and the German border, it is a major seaport, the largest city of northwestern Poland, and se ...
and
Swinemunde. It was assumed that it was part of a force being sent to counter an Allied move against Scandinavia (the Germans had some awareness of Allied plans as a result of their own intelligence) and so that day, the British took the decision to proceed with the mining of the iron ore route separately from Operation Royal Marine, setting a date of 8 April for the Admiralty to implement it.
Prelude
Operation Wilfred
The mining plan became Operation Wilfred and the new landing operation Plan, R4. Force WV, consisting of four destroyer minelayers and four escorting destroyers was to lay mines off just south of the
Lofoten Islands in
Vestfjorden (67°24'N, 14°36'E) in the channel leading to
Narvik
() is the third-largest List of municipalities of Norway, municipality in Nordland Counties of Norway, county, Norway, by population. The administrative centre of the municipality is the Narvik (town), town of Narvik. Some of the notable villag ...
. Force WS, the auxiliary minelayer and four destroyers was to lay mines off Stadtlandet (62°N, 5°E). Force WB, with two destroyers, was to lay a dummy minefield off the
Bud
In botany, a bud is an undeveloped or Plant embryogenesis, embryonic Shoot (botany), shoot and normally occurs in the axil of a leaf or at the tip of a Plant stem, stem. Once formed, a bud may remain for some time in a dormancy, dormant conditi ...
headland, south of
Kristiansund
Kristiansund (, ; historically spelled Christianssund and earlier named Fosna) is a List of municipalities of Norway, municipality on the western coast of Norway in the Nordmøre district of Møre og Romsdal counties of Norway, county. The admin ...
(62°54'N, 6°55'E) if the Norwegians swept the mines, they were to be replaced by the minelayers.
Plan R4
The British anticipated that Operation Wilfred would prompt German retaliation and Plan R4 was a scheme to forestall German landings by occupying Stavanger, Bergen, Trondheim and Narvik as soon as the Germans revealed their intentions. Brigadier C. G. Phillips and two battalions of infantry for Bergen and two for Stavanger embarked at Rosyth on 7 April in the cruisers , , and . Troops for Narvik were assembled on the Clyde to commence embarkation on the morning of 8 April, to depart later in the day, in six destroyers, escorted by the cruisers and ; Admiral Evans and Major-General Mackesy on Aurora. Although waiting on the Germans conceded the initiative, sixteen submarines were sent to patrol the likely German approach routes to give warning. An infantry battalion bound for Trondheim was due to follow on 9 April. Plan R4 expected that the British troops would be able to hold their positions until reinforced.
Operation

On 3 April, the cruisers ''Berwick'', ''York'', ''Devonshire'' and ''Glasgow'' with the destroyers , , , , and embarked their troops at
Rosyth
Rosyth () is a town and Garden City in Fife, Scotland, on the coast of the Firth of Forth.
Scotland's first Garden city movement, Garden City, Rosyth is part of the Greater Dunfermline Area and is located 3 miles south of Dunfermline city cen ...
to be transported to Norway for Plan R4. Additional troops embarked onto transport ships in the Clyde with other troops, held in readiness until evidence of German intentions gave a pretext to send them to Norway. On 5 April a large force of warships, escorted by the
battlecruiser
The battlecruiser (also written as battle cruiser or battle-cruiser) was a type of capital ship of the first half of the 20th century. These were similar in displacement, armament and cost to battleships, but differed in form and balance of att ...
and the cruiser , comprising elements of Operation Wilfred and Plan R4 set out from the main British naval base at
Scapa Flow
Scapa Flow (; ) is a body of water in the Orkney Islands, Scotland, sheltered by the islands of Mainland, Graemsay, Burray,S. C. George, ''Jutland to Junkyard'', 1973. South Ronaldsay and Hoy. Its sheltered waters have played an impor ...
for the Norwegian coast. On 7 April, the force split, one to carry on to Narvik, the others to carry out Wilfred to the south. If the Norwegians swept the minefields, the British would lay new ones close by. If the Norwegians challenged the British ships, the latter were to inform them that they were there to protect merchant vessels. The British would then withdraw, leaving the Norwegians to guard the area.
As Force WS sailed for Stadtlandet on 7 April, German ships were sighted in the
Heligoland Bight on passage to Norway and the mine laying was cancelled. Early the next day, 8 April, the day scheduled for Wilfred, the British government informed the Norwegian authorities of its intention to mine Norwegian territorial waters. Soon afterwards, Force WB simulated mine laying off the Bud headland by using oil drums and patrolled the area to "warn" shipping of the danger. Force WV laid the minefield in the mouth of Vestfjord. At 05:15 that morning, the Allies broadcast a statement to the world that justified their action and defined the mined areas. The Norwegian government issued a strong protest and demanded their immediate removal; the German fleet was already advancing up the Norwegian coasts.
Later that day, the ore carrier , sailing from Stettin, in northern Germany was sunk in the
Skagerrak
The Skagerrak (; , , ) is a strait running between the North Jutlandic Island of Denmark, the east coast of Norway and the west coast of Sweden, connecting the North Sea and the Kattegat sea.
The Skagerrak contains some of the busiest shipping ...
by the Polish submarine . The ship was carrying troops, horses and tanks for the German invasion of Norway, part of
Operation Weserübung
Operation Weserübung ( , , 9 April – 10 June 1940) was the invasion of Denmark and Norway by Nazi Germany during World War II. It was the opening operation of the Norwegian Campaign.
In the early morning of 9 April 1940 (, "Weser Day"), Ge ...
. Around half of the 300 men on board were drowned, survivors telling the crews of the Norwegian fishing boats that picked them up that they were on their way to Bergen to defend it from the British.
Aftermath
Analysis
Operation Wilfred was complete, the southern ships of Force WS and Force WB rejoined the
Home Fleet
The Home Fleet was a fleet of the Royal Navy that operated from the United Kingdom's territorial waters from 1902 with intervals until 1967. In 1967, it was merged with the Mediterranean Fleet creating the new Western Fleet.
Before the First ...
and took part in
Operation Rupert, British operations against the German invasion of Norway. Force WV to the north confronted the German landings. The Norwegians were taken by surprise by the German invasion on 9 April, which began with German landings in the Norwegian cities of Stavanger, Oslo, Trondheim, Narvik and Bergen. British and French troops landed at Narvik on 14 April to ''assist'' the Norwegians, pushing the Germans out of the town and almost forcing them to surrender. Despite Allied landings between 18 and 23 April, the Norwegians surrendered on 9 June 1940. Operation Wilfred failed to cut off iron ore shipments to Germany but for the rest of the war British ships and aircraft could enter Norwegian waters and attack German ships at will.
Subsequent events
(Lieutenant-Commander
Gerard Roope), had become detached from the main force on 6 April to look for a man lost overboard and encountered the German
heavy cruiser
A heavy cruiser was a type of cruiser, a naval warship designed for long range and high speed, armed generally with naval guns of roughly 203 mm (8 inches) in calibre, whose design parameters were dictated by the Washington Naval Treat ...
. ''Glowworm'' carried out a torpedo attack and after receiving return fire and suffering severe damage, she rammed ''Admiral Hipper'', sinking soon afterwards, with the loss 111 men; Roope was awarded a posthumous
Victoria Cross
The Victoria Cross (VC) is the highest and most prestigious decoration of the Orders, decorations, and medals of the United Kingdom, British decorations system. It is awarded for valour "in the presence of the enemy" to members of the British ...
. ''Renown'', which had diverted to assist ''Glowworm'', fought the
Action off Lofoten
The action off Lofoten was a naval battle fought between the German ''Kriegsmarine'' and the British Royal Navy off the southern coast of the Lofoten Islands, Norway during the Second World War. A German squadron under ''Vizeadmiral'' Günth ...
with the German battleships and off the coast. The Germans disengaged from the battle, drawing ''Renown'' and her escorts away from the German landings at Narvik. The 2nd Destroyer Flotilla, which had taken part in the mining of the Vestfjord, took part in the
First Naval Battle of Narvik (10 April).
''Icarus'' captured ''Alster'' (11 April) and took part in the
Second Naval Battle of Narvik (13 April 1940).
British order of battle
Home Fleet
From Rosyth, 7 April
From Rosyth, 8 April
Covering force
Force WV (Mouth of Vestfjord)
Force WS (Stadtlandet)
Force WB (Bud headland)
See also
*
Operation Catherine (proposed Baltic operation)
Notes
Footnotes
References
*
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Further reading
*
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{{DEFAULTSORT:Wilfred, Operation
Norwegian campaign
1940 in Norway
Military operations directly affecting Sweden during World War II
Maritime incidents in Norway
Norway–United Kingdom relations
Mine warfare
Blockades of World War II