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...1940
Map -
Invasion of Norway
APRIL 1940
ATLANTIC - APRIL 1940
German Raiders - Orion
sailed for the Pacific and Indian Oceans around South
America's Cape Horn. She was out for 16 months before
returning to France.
10th - U-50 on patrol off the Shetlands in
support of the Norwegian invasion, was sunk by destroyer
Hero.
Faeroe Islands - On
the 13th April, following the German invasion of Norway,
an advance guard of Royal Marines landed on the Faeroe
Islands, northwest of the Shetland Islands with the
eventual agreement of the Danish Governor.
Monthly Loss Summary: 4 British, Allied
and neutral ships of 25,000 tons from all causes; 1 German U-boat.
EUROPE - APRIL 1940
Atomic Bomb - Just
as the phoney war ended in Europe (it never
existed at sea) the end of the war was foreshadowed when
the British government established the Maud Committee to
oversee nuclear research. Similar steps had already been
taken in the United States, all of which eventually led
to an operational atomic bomb.
German Codes - The
Bletchley Park Ultra programme was now decoding some
Luftwaffe low-level Enigma codes, partly because of poor
German security procedures. There is little evidence the
hard-won information influenced the war over the next two
violent months.
Norwegian Invasion &
Campaign
(see map above)
3rd - The
first German troop transports sailed for Norway. 7th
- German covering and troop-carrying warships
headed for Norway. 8th - Operation 'Wilfred': Royal Navy
destroyers laid minefields, simulated and real at three points
off the Norwegian coast, including near Bodo. Battlecruiser
Renown and other
destroyers provided cover. One of the screen,
GLOWWORM (Lt-Cdr Roope) was detached
to search for a man overboard just as 8in-gunned
cruiser Admiral Hipper headed into
Trondheim. They met to the northwest of the port
and the destroyer was soon sunk, but not before
she rammed and damaged Hipper. + Lt-Cdr Gerard Roope RN
was posthumously awarded the Victoria Cross.
7th-8th - In response to
reported German movements, units of the Home Fleet including
Rodney,
Valiant,
Repulse, four
cruisers and 14 destroyers sailed from Scapa Flow
and Rosyth. Accompanying them was a French
cruiser and two destroyers. Two more British
cruisers and nine destroyers left other duties
and headed for Norwegian waters. Next day, on the
8th, they were joined by the four troop-carrying
cruisers of Operation 'R4', but after the
soldiers had been disembarked back in Britain.
More than 20 submarines, including three French
and one Polish took up positions.
9th,
Germany invaded Denmark and Norway (Operation
'Weserubung'): Copenhagen was soon occupied and
DENMARK surrendered. In Norway, seaborne troops
landed at Oslo, Kristiansand, Egersund and Bergen
in the south, Trondheim in the centre and Narvik
in the north. The southern forces and those from
Trondheim pushed inland and joined up by the end of the month.
They then moved north to relieve Narvik, which was isolated by
the Allies soon after the first German landings. German Navy
forces included a pocket battleship, six cruisers, 14
destroyers, torpedo boats and minesweepers for the landings at
the six Norwegian ports, with battlecruisers “Scharnhorst” and
“Gneisenau” covering the two most northerly landings. Thirty
U-boats patrolled off Norway and British bases, but throughout
the campaign suffered from major torpedo defects. Early in the
morning of the 9th, battlecruiser
Renown was in
action with the two German battlecruisers to the
west of Vestfiord. Gneisenau was damaged and Renown
slightly. The
Germans withdrew. As Renown was in
action, German occupation forces heading for Oslo
came under heavy fire from Norwegian coastal
defences. Shore-sited guns and torpedoes in Oslo
Fiord sank heavy cruiser
BLUCHER. A Home Fleet cruiser force was
detached to attack the German warships in Bergen,
but ordered to withdraw. They came under
continuous air attack and destroyer
GURKHA was bombed and sunk
southwest of Bergen. That
evening, German cruiser KARLSRUHE left Kristiansand and was
torpedoed by submarine Truant. She
was scuttled next day.

10th,
First Battle of Narvik - The 2nd Destroyer Flotilla
(Capt. Warburton-Lee) with Hardy,
Havock, Hostile,
Hotspur and Hunter,
entered Ofotfiord to attack the German ships
assigned to the occupation of Narvik. These
included 10 large destroyers. Several transports
were sunk together with destroyers ANTON
SCHMITT (AS) and WILHELM
HEIDKAMP (WH) in Narvik
Bay. Other
German destroyers were damaged, but as the
British 2nd Flotilla retired,
HARDY was beached,
HUNTER sunk by the remaining
German ships and Hotspur badly damaged. + Capt
Bernard Warburton-Lee RN was posthumously awarded
the Victoria Cross.
By the 10th, the British Home
Fleet was reinforced by battleship
Warspite and carrier
Furious. On the same day submarine
THISTLE on patrol off Utsira
failed in an attack on U-4. Shortly
after she was sunk by the same U-boat. Fleet Air
Arm Skua dive-bombers of 800 and 803
Squadrons flying from the Orkney Islands sank
German cruiser "KOENIGSBERG" at her moorings in Bergen,
the first major warship sunk by air attack. She
was damaged earlier by shore batteries in the
landings. .
11th -
Returning from the Oslo landings, German pocket
battleship Lutzow was torpedoed and badly
damaged by submarine Spearfish in the
Skagerrak. Cruiser Penelope on her way into Narvik was
damaged running aground in Vestfiord.
13th, Second Battle of Narvik - Battleship
Warspite and nine destroyers were
sent into the Narvik fiords to finish off the
remaining German ships. Submarine U-64 was surprised and sunk by
Warspite's Swordfish catapult
aircraft as it scouted ahead. The
eight surviving German destroyers BERND
VON ARNIM (BA), DIETHER VON
ROEDER (DR), ERICH
GIESE (EG), ERICH
KOELNNER (EK), GEORG
THIELE (GT), HANS
LUDEMANN (HL), HERMANN
KUNNE (HK) and WOLFGANG ZENKER
(WZ) were
all destroyed or scuttled. The British Eskimo and Cossack were damaged. By the 13th,
the first British troop convoys had left the
Scottish Clyde for Narvik, but some ships were
diverted to Namsos. German forces were
well-established in the south and centre of
Norway and had control of the air.
14th -
Submarine
TARPON on patrol off southern
Norway was sunk by German minesweeper
M-6. German gunnery training ship BRUMMER was torpedoed and sunk by
submarine Sterlet .
14th-16th -
The first Allied landings took place between the
14th and 16th. In the north, British troops
occupied Harstad in preparation for an attack on
Narvik. They were reinforced by French and Polish
units through into May. Royal Marines led British
and French troops into Namsos ready for an attack
south towards Trondheim. The British went ashore
in the Andalsnes area to try to hold central
Norway with the Norwegian Army. Neither of these
operations proved possible and on the 27th April
the decision was taken to pull out of central
Norway.
15th - As
the Harstad-bound troopships approached their
destination, escorting destroyers
Brazen and Fearless
located and sank U-49. Southwest of Stavanger, U-1
went to the
bottom after striking a mine.
17th
- Heavy cruiser Suffolk
(right - NavyPhotos) bombarded installations at Stavanger, but on her return was badly damaged by
Ju-88 bombers and barely made Scapa Flow with her
stern awash.
18th - Four
days after sinking the Brummer, submarine
STERLET was presumed sunk in the
Skagerrak by German anti-submarine trawlers.
24th - After four days
continuous AA duty off Andalsnes, cruiser
Curacoa was badly
damaged by bombs. Carrier Glorious flew off
obsolescent Gladiator biplanes for shore
operations.
27th -
Allied plans to attack towards Trondheim and hold
central Norway proved impossible. The decision
was taken to pull out of central Norway, and the
evacuation of Andalsnes and Namsos got under way.
30th -
Sloop BITTERN was sunk by Ju-87
dive-bombers off Namsos.
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29th -
Submarine UNITY was lost in collision with a
Norwegian merchantman off the northeast coast of England.
Air War - The first
mines were laid by RAF Bomber Command off the German and
Danish coasts.
Monthly Loss Summary: 54 British, Allied
and neutral ships of 134,000 tons from all causes.
MAY 1940
ATLANTIC - MAY 1940
German Raiders -
Widder headed for central Atlantic operations
before returning to France six months later. On her way
into the Indian Ocean, Atlantis laid mines
off South Africa.
Iceland & Dutch
West Indies - On the 10th as Germany attacked France
and the Low Countries, British Royal Marines landed from
two cruisers at Reykjavik, Iceland then part of the
Danish Crown. More troops followed to set up air and sea
bases that became vital to Britain's defence of the
Atlantic supply routes. To avoid any possibility of
confusion, Winston Churchill always insisted on
differentiating between Iceland (C) and Ireland (R).
Shortly after Germany invaded Holland, Allied troops
landed on the Dutch West lndies islands of Aruba and
Curacoa to protect oil installations.
Battle
of the Atlantic - U-boats
started returning to the Western Approaches and as they
did, one of the first Flower class corvettes
Arabis made a depth-charge attack in defence
of a Gibraltar/UK convoy. With the closure of the
Mediterranean to Allied shipping, the trade routes around
Africa and the ports en route took on a new importance.
Particularly vital was the West African base at Freetown,
Sierra Leone
Monthly Loss Summary: 10 British, Allied
and neutral ships of 55,000 tons from all causes.
EUROPE - MAY 1940
Norwegian
Campaign - continued
2nd/3rd - In
three days and nights the last 10,000 British and
French troops had been evacuated from Namsos and
around Andalsnes following the failure to attack
towards Trondheim and hold central Norway. Other
troops were later landed further north, including
at Bodo in an attempt to block the German advance
from Trondheim towards Narvik. The Allies
continued to build up forces for the attack on
Narvik. + Lt-Cdr Richard Stannard RNR, commanding
officer of HM trawler Arab of the 15th
Anti-Submarine Striking Force, was awarded the
Victoria
Cross for
gallantry under air attack during operations off
Namsos.
3rd
- Retiring northwest from Namsos, destroyers
AFRIDI and the French
BISON were sunk by Ju-87 Stuka
dive-bombers.
4th
- As preparations continued in northern Norway
for the attack on Narvik, Polish destroyer GROM
was bombed and
sunk.
5th
- Submarine
SEAL successfully laid mines in
the southern Kattegat on the 4th before being
damaged by a German mine. Trying to make for
neutral Sweden on the surface, she was attacked
and captured off The Skaw by German air and sea
patrols.
17th
- Cruiser
EFFINGHAM ran aground on an
uncharted rock in Vestfiord carrying troops to
Bodo to help block the German advance on Narvik.
She was later torpedoed and abandoned.
23rd
- By now carriers Furious
and Glorious had flown ashore the first
modern RAF fighters.
24th
- The Allies decided to pull out of Norway
altogether, but not before Narvik had been
captured and the port installations destroyed.
26th
- During the attack on Narvik, AA cruiser
CURLEW was bombed and sunk in
nearby Lavang Fjord.
28th
- Two days after the loss of sister ship “Curlew”,
Cairo was badly damaged off the
town of Narvik just as French and Polish troops
completed its capture. The Norwegian Campaign
shortly drew to a close
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Britain -
Following a 10th May House of Commons debate on the
Norwegian campaign, Prime Minister Neville Chamberlain
resigned and Winston Churchill assumed leadership. Albert
V Alexander succeeded him as First Lord of the
Admiralty. The planned attack on Narvik was still to go
ahead, but that same day the German Blitzkrieg was
launched on Holland, Belgium and France .
Western
Front
10th,
Germany invades Holland, Belgium, Luxembourg
(Operation 'Gelb') - British and French troops crossed
the border into Belgium and took up forward
positions, but the main German thrust was a
planned encircling movement further south through
the forests and mountains of the Belgium
Ardennes.
13th - The
Germans entered France at Sedan. After breaking
through, German armour headed west for the
Channel to trap the Allied armies now in Belgium
and northern France. British Admiralty plans had
already been made to withdraw shipping from the
Low Countries, block main ports, demolish
installations and remove gold and diamonds. Most
of these duties were carried out with the aid of
Royal Navy destroyers which suffered heavy losses
over the next few weeks. Still on the 13th,
Hollands Queen Wilhelmina and her
Government were now on their way to Britain
aboard a Royal Navy destroyer to continue
Holland's fight.
14th - The
centre of Rotterdam was blitzed by the
Luftwaffe.
15th - Destroyers
continued to support Allied land forces off the
Dutch and Belgian coasts. Under heavy air attack,
two were bombed and beached over the next few
days, starting with
VALENTINE in the Scheldt Estuary. The
DUTCH Army surrendered to the
Germans. On the same day, Winston
Churchills War Cabinet, anticipating the
Battle for Britain decided not to send any more
RAF fighters to France. The strategic
bombing of Germany was also ordered and raids
made on the Ruhr.
17th - As
the Allies retreated from Belgium, German forces
entered Brussels.
19th -
The second destroyer supporting Allied land
forces,
WHITLEY was beached near Nieuport
on the Belgian coast with bomb damage.
20th
- German tanks reached the English Channel near
Abbeville, shortly turning right and advancing
north on the ports of Boulogne, Calais and
Dunkirk. Destroyers carried Allied troops to
Boulogne and Calais and remained in support. Over
the next four days, five Allied destroyers were
lost and others damaged in the area. 21st
- French destroyer LADROIT bombed and sunk off
Dunkirk. 23rd - French destroyer
ORAGE bombed off Boulogne and JAGUAR torpedoed and sunk by
German E-boats S-21 and
S-23 off Dunkirk. 24th
- A fourth French destroyer, CHACAL was bombed off Boulogne.
The British
WESSEX was also bombed and sunk
supporting the defenders of Calais.
26th
- Both Boulogne and Calais fell to the Germans.
The British Expeditionary Force and French Army
fell back on Dunkirk.
26th May-4th June, Dunkirk
Evacuation (Operation 'Dynamo') - Initial plans were to lift
off 45,000 men of the British Expeditionary Force
over a two-day period under the direction of
Vice-Adm B. H. Ramsey. In the next five days,
8,000 men on the 27th May, 18,000 on the 28th,
47,000 on the 29th, 54,000 on the 30th and 68,000
on the 31st were carried to Britain - a total of
195,000, both British and French. Every phase of
the operation was subject to heavy air, sea and
land attack. Forty
British, six French and a Polish destroyer took
part, together with 800 other vessels, large and
small. Losses were considerable. The Dunkirk
evacuation continued into June.
28th - The
BELGIUM Army surrendered on the
northern flank, seriously endangering the Allied
evacuation from Dunkirk.
29th -
Apart from those damaged, three Royal Navy
destroyers were sunk in the English Channel off
the Dunkirk beaches on this day -
GRAFTON torpedoed by submarine
U-62,
GRENADE by bombing, and
WAKEFUL by a torpedo from E-boat
S-30.
30th -
French destroyers also continued to suffer
losses. BOURRASQUE was mined off the Belgium
port of Nieuport and sunk by shore batteries. 31st
- Bourrasques sister ship SIROCCO was torpedoed and sunk by
German E-boats S-23 and
S-26.
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31st -
German U-13
was believed sunk by
sloop Weston off the English East Coast
fishing port of Lowestoft.
Air War - Minelaying
continued along the south and east coasts of Britain as
well as the waters of Holland, Belgium and northern
France during the German Blitzkrieg.
Monthly Loss Summary: 90 British, Allied
and neutral ships of 231,000 tons from all causes.
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