Operation Silver Fox (; ) or the Murmansk operation () from 29 June to 17 November 1941, was a joint German–Finnish military operation during the Continuation War on the Eastern Front of World War II against the Soviet Union. The objective of the offensive was to cut off and capture the key Soviet port of Murmansk through attacks from Finnish and Norwegian territory.
The operation had three stages. In Operation Rentier ("Reindeer"), German forces advanced from Norway to secure the area around Petsamo and its nickel mines. Operation Platinum Fox (; ) was an attack from the north by Mountain Corps Norway, as XXXVI Mountain Corps and units from the Finnish III Corps attacked from the south in Operation Arctic Fox (Polarfuchs; ) to cut off and capture Murmansk by a pincer movement. The German–Finnish forces took some ground but Murmansk was neither cut off nor captured and continued to operate as an important destination for Allied Arctic convoys throughout the war.
Background
Finland solidified its independence from Russia in the Finnish Civil War of January to May 1918 between German-supported nationalists and Russian Bolshevik-supported communists, in the closing stages of World War I. Tensions between the new anti-communist republic and the Soviet Union remained high during the early interwar years. Following a number of border skirmishes between Finnish nationalists and the Soviet Union in Karelia, the Treaty of Tartu settled the border of the two countries in 1920. Soviet-Finnish relations remained cool, but the two parties signed a 10-year non-aggression pact in 1932.
In 1933 the Nazis came to power in Germany. The Soviet Union feared an attack by Germany and sought to secure itself against a possible German–Finnish alliance; Finland wanted to preserve its neutrality. During negotiations in 1938 and 1939, the Soviet Union demanded securities from Finland to allow intervention by the Red Army in case of a German entry into Finland. After a Finnish rejection, the Soviet Union proposed a land-trade for strategic locations it deemed necessary to defend against a German invasion. Gustaf Mannerheim (the Chairman of Finland's Defence Council) and others favoured the proposal, but the Finnish government wanted to preserve its neutrality and the lengthy negotiations failed.
On 23 August 1939 the Soviet Union and Germany signed the Molotov–Ribbentrop Pact, which contained a secret protocol dividing Europe into spheres of influence for each country. Finland, they agreed, would fall into the Soviet sphere. Germany subsequently invaded Poland in September 1939; the Soviet Union invaded eastern Poland 16 days later. With Finland still refusing the Soviet demands, the Soviet Union finally attacked Finland in November 1939, which led to the Winter War. The Soviet Union failed to annex Finland, but did receive territory with the signing of the Moscow Peace Treaty in March 1940. Feeling abandoned by the Western Allies, Finland started to seek help against the threat posed by the Soviet Union. Finland sought inclusion in wider Scandinavian defense co-operation, but both Soviet and German opposition prevented this. The German occupation of Denmark and Norway from April 1940 severed practical Finnish connections to countries other than the Soviet Union, Nazi Germany and Sweden. A proposed Swedish-Finnish military alliance failed due to Soviet–German pressure. Deprived of other potential sources of help, Finland started to seek closer ties with Germany to secure its position against the Soviet Union, and both sides cooperated to develop a joint policy against the Soviet Union.
The Oberkommando der Wehrmacht (OKW, the German Armed Forces High Command) included Finnish forces in its plan for a 1941 offensive against the Soviet Union, dubbed Operation Barbarossa. A Finnish–German offensive named Operation Silver Fox () would support the main Axis effort (directed against central Russia) from the north. Silver Fox aimed to disable the port of Murmansk, an obvious potential entrepôt for Western Allied aid to the Soviet Union, by executing a pincer attack against the port.
Planning
Planning for the operation started in earnest in December 1940. Erich Buschenhagen, chief of staff of Army of Norway (AOK Norwegen) visited Finland and drew up a plan which would determine Finland's role in the war, which included the first draft of German–Finnish operations against the Soviet Union. On 8 December 1940, Hitler issued Directive No. 21, which detailed the campaign plan for Operation Barbarossa, including the targets for proposed German–Finnish cooperation. The detailed plan for the operation was created by Nikolaus von Falkenhorst, commander of the Army of Norway and his staff in January 1941.
On 18 February 1941 the chief of staff of the Wehrmacht in Norway, Colonel Erich Buschenhagen, arrived in Helsinki, and the following days, he had consultations with representatives of the Finnish general staff, General Aksel Fredrik Airo, and General Erik Heinrichs.
Later, Colonel Buschenhagen visited the region of Kuusamo and eastern Rovaniemi, as well as Petsamo, to reconnoitre the area, his visit ended on 28 February.
Operation Silver Fox was planned as a two-staged pincer movement, in three operations; the first phase was Operation Reindeer (Unternehmen Rentier) in which the two divisions of Mountain Corps Norway, the 2nd and 3rd Mountain Divisions under the leadership of Eduard Dietl were to move east from Kirkenes and to deploy in the Finnish held area around Petsamo to secure the nickel mines.
The second phase of Operation Silver Fox was to be a pincer attack against the Soviet port of Murmansk which was ice-free in winter and with Arkhangelsk was likely to be a destination for Western Allied supplies to the Soviet Union. The first prong of the attack was to be a frontal assault against Murmansk by Mountain Corps Norway. The two divisions were to advance east from Petsamo to take Murmansk. On their way, they were to secure the Rybachy Peninsula, supported by Finnish border units. This first pincer attack was code named Operation Platinum Fox (Unternehmen Platinfuchs).
The second pincer, codenamed Operation Arctic Fox (Unternehmen Polarfuchs), was to be launched further south to take Salla, ceded to the Soviet Union after the Winter War, and then to proceed eastwards along the railway to capture Kandalaksha, cutting the vital Murmansk Railway line which connected Murmansk with Central Russia. The operation would involve the German XXXVI Corps under command of Hans Feige and the Finnish III Corps commanded by Hjalmar Siilasvuo.
Aerial support for the offensive was to be provided by Luftflotte 5 based in Norway and the Finnish Air Force. For Operation Silver Fox the Luftwaffe created a new headquarters and moved it into Finland. The Finnish air force fielded about 230 aircraft of various types at the start of hostilities. Luftflotte 5 assigned 60 aircraft to Silver Fox in Finland and employed the Junkers Ju 87, Junkers Ju 88 and Heinkel He 111 aircraft for close air support for the Finnish–German offensive.
By late February 1941, German units were moved into Finland; Germany had secured transit rights through neutral Sweden and the German 2nd and 3rd Mountain Divisions were moved into place at Kirkenes, for Operation Reindeer. For the main body of XXXVI Corps, two sea transport operations were arranged, Blue Fox 1 and Blue Fox 2 (Blaufuchs I and Blaufuchs II). German units embarked in Stettin and Oslo for Oulu, from where they continued via train to Rovaniemi. Once there, they joined Finnish forces and marched into position for the offensive under the guise of border defense exercises.
Soviet preparations were meager; although the Soviets anticipated a German invasion with possible Finnish support, Stalin did not expect a German attack along the entire border so early. The border had been fortified, but the Soviet leadership was taken by surprise. The main adversary of the German–Finnish force was the Soviet Northern Front consisting of the 7th and 14th Armies stationed in the Arctic. The Front was under the command of Lieutenant-General Markian Popov.
On 23 August 1941, the Northern Front was split into the Karelian Front and the Leningrad Front, commanded by Valerian Frolov and Popov, respectively. Frolov had commanded the 14th Army and was succeeded by Roman Panin when he assumed command of the Karelian Front on 1 September. During the first weeks, the Axis had numerical superiority, as the Soviets only had 150,000 men stationed north of Lake Ladoga along the border. The Axis powers also possessed air superiority, as Soviet Karelia was only protected by the 1st and 55th Mixed Air Divisions, with 273 serviceable aircraft of obsolescent types.
Operation Silver Fox
Start of the war
During German–Finnish negotiations, Finland had demanded to remain neutral unless the Soviet Union attacked them first. On 22 June 1941, Germany launched Operation Barbarossa, invading the Soviet Union. German aircraft employed Finnish air bases, while also launching Operation Rentier, which resulted in the take-over of Petsamo on the Finnish–Soviet border. Simultaneously, Finland proceeded to remilitarize the neutral Åland Islands. Despite these actions, the Finnish government insisted via diplomatic channels that it was still a neutral party, but the Soviet leadership already viewed Finland as an ally of Germany. On 22 June, the Murmansk Oblast entered a state of emergency, with a total of 50,000 mobilized into the army and navy. Conscripts and volunteers joined the ranks of the newly formed 1st Polar Rifle Division, while sailors from the Northern Fleet entered the service of a marine infantry brigade. Also, a considerable number of civilians were employed in the construction of four lines of fortifications between Zapadnaya Litsa and Kola Bay. Subsequently, the Soviets proceeded to launch a massive air raid on 25 June, bombing all major Finnish cities and industrial centers, including Helsinki, Turku and Lahti. During a night session that same day, the Finnish parliament decided to go to war against the Soviet Union. Operation Silver Fox could now commence.
Operation Reindeer
The first phase of Silver Fox was launched on 22 June 1941, to coincide with the launch of the general German offensive, Operation Barbarossa. The two divisions of Mountain Corps Norway moved out from Kirkenes to the east and began deploying in the Finnish-held area around Petsamo. The appearance of a German corps on their border came as a surprise to the Russians. The operation was successful and the nickel mines were secured. Dietl's troops reorganized and prepared for the launch of Platinum Fox. In the South, the units of Feige's XXXVI Corps prepared for their attack at Salla.
Operation Platinum Fox
On 29 June Dietl launched his attack together with Finnish border units towards the east. They were opposed by two Soviet divisions of the 14th Army, the 14th and 52nd Rifle Divisions. On the first day, the initial advance of Dietl's forces looked promising. The 2nd Mountain Division was able to secure the neck of Rybachy Peninsula, while the 3rd Mountain Division was able to penetrate the Soviet lines at the Titovka Valley, capturing a bridge over the river.