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OKW Operations Staff has relinquished its demand for a transport operation to Trondheim because of Naval
Staff's rejection. Instead, transport to Bergen is to be reviewed.
Naval Staff considers the operation practicable, even though with certain misgivings. Crossing should be carried out so that at dawn the transports are off Skudesnes, where strong anti-submarine escort and precautionary anti-submarine measures will await the transports.
At a speed of advance of 20 knots in the open sea, the ships would then have to leave the estuaries about 0600 on the day before
and cross the latitude of Hanstholm (57° N) at about 2100.
Defense :
From the Heligoland Bight to Skudesnes close escort by the Fleet, strong ASW escort requiredt, air escort by Air Force fighter and heavy fighter formations. Picked up by S Bootes from Skudesnes; the Fleet forces will be out to sea and will protect the transports advancing in the skerries against penetration by enemy surface forces and partly also against surprise attacks by enemy bombers from the west.
It Is necessary for the operation that very strong air escort of the transports by fighter and heavy fighter formations be provided until the troops and material have been disembarked in Bergen. Group West has very strong objections to the despatch of the
POTSDAM and GNEISENAU because of the great danger from the air, and proposes that the troops should be given fast transport on DDs and TBs (possible to take over about 1,200 men at one time). The question is being re-considered by Naval Staff.
U 25 reported again. (Her transmitter was out of order). U 29 at last put into Trondheim. There have been so many radio messages that it had to be investigated whether the boats are not being requested to make too many reports.
Enemy reports are already limited to battleships, cruisers and troop transports, and these are essential if a picture is to be formed of the situation in the operations area and a/c or other boats are to be sent out. The only possibility is to use short signals more. Whether or not these can be D/F'd must be tested by our own D/F network with the next boats to sail.
U 65 again reported battleships and destroyers. She should arrive in the area west of the Shetlands tomorrow together with U 25
and also U 61, coming from Bergen. It will then be necessary to re-dispose the "western boats" in this area. Although during the short time that boats have been there since the occupation of Norway no successes have been achieved, it must nevertheless be assumed that the main route for English supply lies through this area.
A scattered disposition is best for anti-S/M activity at this time of year, at least for the larger boats, while the 2 small boats on the western side can approach closer to the coast and the starting points (Scapa and Loch Ewe). Relevant boats have been informed of the assembly points at Sullom Voe and Luna Ness reported by radio intelligence and a/c. They themselves will have to find out what opportunities these offer. U 43, 9, 19, 46 entered port. U 43 (Lieut.(s.g.) Ambrosius) took 35 tons ammunition to Trondheim and several times sighted cruisers and destroyers, with out being able to attack.
U 46 (Lieut. (s.g.) Sohlen) was operating in the Westfjord and the Ofotfjord and was chased by destroyers. An attack on Warspite failed, because the boat hit a rock when about to fire. A double shot at a French "Albatross" torpedo cruiser, at close range ran under, although the depth set was 3 meters. In spite of her best efforts this boat achieved no success. The Commanding Officer, to whom no blame attaches, will have to be relieved because of nervous exhaustion.
U 9 probably sank a large or Jervis class destroyer; the ship could no longer be heard in the hydrophones after the shot. The sinking is not absolutely certain however. For the rest, there is nothing particular to mention about these small boats. Mines are suspected in the Elbe. Arrangements have been made with F.O.I.C. North Sea Defenses for the next boats to have mine escort. Losses due to mines in our own waters must be avoided at all costs and it should be perfectly possible to avoid them.
Narvik ;
In the morning the town and ore railroad were bombarded by 2 BBs, 2 cruisers and 7 DDs. No vital damage. Non-combatant units of troops and prisoners were evacuated along the ore railroad. Gp Narvik blew up the ore pier and set it on fire. Coming from the nth, the enemy attacked nth of positions near Elvenes and on the Oalgge Pass.
Trondheim :
After visiting Trondheim, Commanding Admiral, Norway reports that the withdrawal of the DDs without replacement of the personnel engaged ashore would very greatly prejudice Trondheim* s defense and is therefore impossible.
In reply to a request made by Quartermaster General of Commander in Chief, Air Force, he was informed that six submarines at most
could be made available for transport of aviation gasoline to Trondhelm. The Quartermaster General had made a request which would have necessitated the withdrawal of 24 submarines for transport purposes alone.
Bergen :
Admiral, West Norwegian Coast has ordered the immediate seizure of all Norwegian trawlers and drifters to bring units of commanding Admiral, Defenses, Baltic up to strength. Reconnaissance of Sogne Fjord with reference to the setting-up of torpedo batteries has been carried out. Naval Staff is forced to refuse Group West' s request for the allocation of defense vessels from the Baltic area to Admiral, West Norwegian Coast, since It is not possible to remove vessels at present from the Baltic area because of losses incurred and great claims on all vessels. Gp West has been instructed to investigate the question of handing over two PVs
from the area of Commanding Admiral, Defenses, North and to hand over Ship "7".
It appears from enemy radio traffic that MSWs have exploded a magnetic mine lit cables from Chequers Shoals Buoy. This is the first definite information that the enemy possesses a ready minesweeping gear or "magnet gear" to sweep magnetic mines.
The last few days have confirmed Naval Staff's supposition that:
1. The enemy has begun aerial minelaying operations in the North Sea estuaries, in the Kattegat, in the entrances to the Baltic
and in the western Baltic and that
2. he is in a position to sweep the magnetic mines laid by us with a certainty not yet fully determined.
Boats in the operational area, excluding those on their way back or on transport trips, are now distributed as follows:
U 14, 17, 24 off the approaches to Bergen
U 23, 57, 58, 59 east of the Shetlands and Orkneys
U 13, 61, 25, 30, 34, 65 west of the Shetlands and Orkneys or on their way there....U 49, 50 doubtful. Loss probable.
No reports have yet been received from their area west of the Orkneys etc. U 30 and 34 reported by short signal that there was little traffic or patrol.
All the storage buildings on the waterfront have been destroyed by German bombers, and the mass evacuation of civilians has led to a serious shortage of transport."When the town came into view the sight was remarkable. The whole place was a mass of flames from end to end and the glare on the snows of the surrounding mountains produced an unforgettable sight."
Area Sth of Trondhelm ; It Is apparent from a radiogram from the Otta area that CV GLORIOUS is off the coast in the Kristiansund - Trondheim area. Disembarkations of troops and material in Andalsnes are completed according to a radiogram from the Commander there; 2 cruisers and DDs sailed after completing their assignment. DDs, freighters and steam tankers were detected in Romsda Is Fjord, Nordal Fjord and Sjflrungs Fjord and successfully attacked by the LW. Air recon sighted enemy forces in the afternoon 60 miles NE of Molde Fjord, consisting of 4 Capital ships (incl BC RENOWN) and 4 cruisers on course 150°. Plans not identifiable.
Home Area ;
The BC HOOD was spotted 30 miles northeast of the Shetlands by air recon. The cruisers GLASGOW and GALATEA in the Shetlands-Scapa area. The enemy sub disposition was detected to a great extent. About 7 boats are thought to be in the Skagerrak and Kattegat, 5 on return passage, 5 outward bound, 3 of the latter into the sthn Nth Sea.
The 5th S-Boote Flot succeeded in recovering a British aerial mine west of Samsfl. A most significant and gratifying success, which within the shortest possible time after the first enemy use of aerial mines has eliminated the element of uncertainty in the problem of combatting the aerial mine and thus represents the first step towards effective defense against it. According to the first statements, it is a ground mine with about 500 kg. of explosive, apparently magnetic firing . The Minelaying Experimental Command has commenced further investigations. Numerous flights by enemy planes during the night of 25 April over Kiel Bay, North Schleswig Into the Fehmarn-Eutin area and Lubeck Bay. Minelaying suspected. Several impacts by bombs or mines in the water are reported from the Elbe and Kiel Canal.
Transports of troops and personnel continue as planned. 2,500 men taken to Larvlk, 900 to Oslo. Further transports en route with 2,100 men.
Commanding Admiral, Norway reports regarding the Norwegian campaign naval vessels commissioned for German use and on vessels
seized. Commissioned with German crews: 2 DDs, 1 ML, 6 TB (2nd class), 1 old ML, 2 MSWs, 6 whalers, 2 aux vessels.
English attacks on Bergen and consequent chances of success for the boats there are no longer to be expected. These boats are therefore being disposed northeast of the Shetlands where prospects are likely to be more favorable, especially as U 59 reported a convoy east of the Shetlands. U 26 entered Wilhelmshaven, having transported ammunition etc. to Trondheim. She sank a transport. Otherwise the trip was without incident.
The first supply train from Sweden has arrived at the frontier. Supplies, however, are extremely difficult, since the ore railroad is partly destroyed and without current. Supplies for Narvik are therefore not assured for any length of time
The department of the British Ministry of Shipping in New York stated that all Danish ships on the high seas which had not transferred to the Allied flag would be seized as prizes since they technically represented enemy tonnage. Transfer to other neutrals would not be acknowledged. The Allies are, however, ready to make agreements on the chartering of such ships.
On the other hand, the Danish Shipping Committee in New York stated that Denmark had opposed the German invasion. Germany has therefore no legal rights over Danish ships. The British assertion that these ships are prizes according to International Law cannot therefore be acknowledged. Endeavors to come to an agreement with the Allies about the routes outside the European war zone have unfortunately failed.
According to fresh reports from Group Baltic it is possible that the British ground mine does not work with magnetic but with acoustic firing. If this assumption is confirmed, we must also expect that the British torpedo possesses an acoustic control . (This explains various torpedo hits on the stern as e.g. the steamer PRIEDENAU, the cruiser LUTZOW). Chief, Naval Staff considers that further use of subs off the Norwegian coast and for attacks on enemy naval vessels offers little prospect of success,, in view of
the torpedo difficulties and the slight chances of hitting fast-moving warships, and considers that the resumption of war against merchant shipping In the Atlantic as soon as possible is necessary and alone promises success.
U 17 has succeeded in rescuing the crew of an a/c which made a forced landing between the Orkneys and the Shetlands. U 34 attacked the 20,000 ton "Franconia" north of the Minch. The ship's course had been obtained by B Dienst Service intercepts . No success. End-of-run detonator. Probably a miss at long range. Nevertheless it shows that it is possible to attack in this area. U 34 is returning as she has used all her torps.
.U 56, 60 and 62 returned from patrol. These boats were operating off Bergen and between the Shetlands and Norway, temporarily also in the area nth of Stadtlandet. They had no opportunities to attack, but sighted numerous enemy forces (DDs). The commanders of U 51 and U 64 reported on their operation in the Westfjord. In spite of difficult conditions (short light nights, calm sea, no chance of taking avoiding action) there were possibilities of success which could have had a decisive effect on ops in the nth if the numerous torpedo failures had not caused every attack to fail. U 64 was to have provided outward escort for the aux cruiser ship 36, but she did not find her and afterwards operated off Narvik. After heavy D/C attacks she put into Narvik for repairs and changing and was sunk by air attack in the Herjangsfjord on 13.4. The crew was saved except for 8 ratings
.NORTH AMERICA: US President Roosevelt announced that the United States recognized the state of war between Germany and Norway, and reaffirmed American neutrality in that conflict. To that end, he specifically forbade Norwegian submarines from entering American territorial waters
In point of fact, much of the Norwegian army was about to surrender, and the western allies to abandon central Norway.The Supreme Commander of the Norwegian Army issu«d an order of the day:
"You did everything In your power to stop the enemy. You were often forced back and thus had to leave your positions. That is
disheartening but the main thing was to gain time. You honorably discharged your duty, for which I thank you. This withdrawal
movement is now at an end and I exhort you anew: Be of good courage and we shall be victorious."
Sweden :
The Foreign Office is at present trying to obtain the Swedish Govt's consent to the carrying of survivors, wounded and prisoners on the return journey of the trains running to Gp Narvik. This measure is justified as an act of humanity. Even the question of possible internment by the Swedish Govt will be no obstacle.
Denmark :
In reply to the blocking of Danish assets in the U.S.A. The Danes have blocked U.S. assets in Denmark.
Lt Prien reported on U 47, which entered Kiel on 26.4. He was operating against the transports entering the Vaagsfjord and was stationed in the southern sector of the fjord, where the transports could be expected to unload. He twice attacked cruisers and destroyers lying at anchor in the Vaagsfjord (Bygden). If the torpedoes had not failed this would have meant a success which would have changed the whole situation in the Narvik area.
U 38 entered port. She too made unsuccessful attacks on "Warspite" in the Vaagsfjord and on a cruiser in the Andfjord. On her way back she made contact with a convoy, which U 47 had shadowed in a masterly fashion, but was forced to dive before she could attack and depth charged.
Naval War Staff issued the following new directions for U-boat operations:
1) Orkneys-Minch area to be occupied constantly.
2) As strong a disposition as possible in the Atlantic.
3) For the present further supplies to Trondheim.
4) if necessary operation for case "GELB".
5) U-boat training.
On the other hand no further action is required in the Norwegian coast area. It is not at present possible to fulfill the 2 main requirements, occupation of the Orkneys-Minch area and operation in the Atlantic, simultaneously. The small boats which are now E and NE of the Shetlands will have to return within the next few days. The 8 small boats which remain for operational purposes will need long rests before they can put to sea again. They have carried out 2 and even 3 patrols with only very short intervals between them. U 13, 61, 25, 30, 34 and 65 are still in the Orkneys-Minch area and west of the Shetlands. These too will have to return soon without being relieved. They too will need some time after their return before they can operate again. I have decided to leave them there until they have exhausted their supplies. It is not yet proven that there are no opportunities to attack, but every ton of enemy supplies sunk there has a greater value than a ton sunk in the Atlantic. Later the small boats can operate in the Orkneys-Minch area and the large ones in the Atlantic. The requirements can only be met with the few boats if they are concentrated and used to best effect. The lack of every boat which is detached for subsidiary operations makes itself felt. It is therefore regrettable that 5 boats are still engaged on transport. U 32 and UA will sail for Trondheim today with ammunition and petrol.
.
Norwegian subs? Should that be "German Subs"?
Combatting British aerial mines ; All offices have been informed of the great difficulties arising from the British use of aerial mines and of the urgency of solving the problem of effective defense and they are working towards this end with all the means in their power.
The attention of subordinate offices will be drawn to the necessity of maintaining special secrecy with regard to all reports about actual or possible further recovery of enemy aerial mines as well as hits on mines, especially also by merchant ships, and to all sweeping results. All information must be transmitted so that the enemy radio monitoring service can gain no insight.
For an appreciation of enemy and of our own minelaying operations it is necessary to ascertain soon how far the aerial
mine as such is finished in construction by the enemy and scheduled for large-scale use. It Is essential to discover particularly whether our own use of aerial mines decided the development of the present British aerial mine or whether it was developed independently by the British. It must be stated already that the British have shown themselves to be masters of improvisation in the use of aerial mines and defense against them and have with simple means, probably without very exact scientific investigations, quite obviously developed both a most useful offensive weapon in their aerial Mine and a useful self-defense and sweeping gear. We must acknowledge that their success in doing this within a very short space of time is a very remarkable achievement.
It is now to be seen that the highly skilled RAF brings the aerial mines to our waters in darkness and in almost every kind of weather, and that it has so far succeeded in carrying the mines almost unmolested over Schleswig Holstein to the Baltic ports, while our own aerial mine formations - thanks to the enemy defenses and their own lack of training - have so far not been in a position to drop the aerial mines in Scapa, in the Clyde or over Liverpool Bay
DKM were obliquely referencing Gorings refusal to agree to the formation of a dedicated FAA for use on the carrier.Further Construction of the Aircraft Carrier GRAF ZEPPELIN : Naval Staff denies the necessity of continuing construction, particularly since there will not be the necessary military and armament prerequisites for the use of the ship in the near future.
The whole AA armament is at present being used for urgent military tasks at other points. It is not possible to provide it for the
carrier again without severe military disadvantages. Complete armament cannot be installed until about one year
after completion, i.e. the end of 1941. The problem of skilled workers offers very great difficulty. Naval Staff is therefore abandoning further construction work on the carrier.
Nothing to Report
The German Charge d'Affaires in Washington reports as follows on the attitude taken up by U.S. public opinion towards the
Norway operation and germany: "While the election campaign is on, important decisions regarding foreign policy can only be expected under exceptional circumstances. Such circumstances would arise if Sweden or Holland were attacked. The situation in the Pacific would preclude full U.S. support for the Allies. The U.S.A.'s entry Into the war would necessitate complete military and economic mobilization, for which the organizational and financial basis is at present still lacking. The prospects of Roosevelt's re-election have increased"
Conference between CinC, Navy and the Fuhrer.
Points discussed ;
1. Further construction on the CV GRAF ZEPPELIN. Fuhrer agrees to construction being stopped.
2. The EMDEN is to remain a further two weeks or so in Oslo, until AA defense of the port is sufficiently assured.
U 101 left for Trondheim with ammunition and petrol. U 29, which is on her way back from Trondheim and was first to have patrolled the English supply routes, has been ordered to return directly, so that she can leave for the Atlantic as soon as possible. It was only intended to use this boat for one transport trip. U 17, 23, 61, 30 have started on their return passage.