Invasion of %C3%85land
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Invasion of %C3%85land
Invasion of Åland
Part of the Finnish Civil War and the Eastern Front of World War I
Swedes, Germans, Russians in Åland 1918.jpg
Swedish, German and Soviet soldiers in Åland
Date15 February - September 1918
 Soviet Russia
 Sweden Central Powers:
German Empire Germany
Commanders and leaders
Russian Soviet Federative Socialist Republic Central Committee of the Baltic Fleet
Harry Borg 
Sweden C. A. Ehrensvärd
Sweden G. E. Ros
German Empire Hugo Meurer
German Empire August Schenck zu Schweinsberg
Hjalmar von Bonsdorff
Johan Fabritius
2,000 Russians
150 Reds
700-800 900 Germans
460 Whites
Casualties and losses
46 killed 1 dead due to suicide 13 Germans dead
6 Whites killed
Swedish troops disarming the Soviets in Degerby village

The Invasion of Åland was a 1918 military campaign of World War I in the Åland Islands, Finland. The islands, still hosting Soviet Russian troops, were first invaded by Kingdom of Sweden in late February and then by the German Empire in early March. The conflict was also related to the Finnish Civil War including minor fighting between the Finnish Whites and the Finnish Reds.

As Germany took control over Åland in March 1918, Russian troops were captured and the Swedish troops left the islands by the end of the Finnish Civil War in May. The Germans stayed in Åland until September 1918. The Åland Islands dispute was then turned over to the Paris Peace Conference in 1919 and the League of Nations in 1920. The Åland convention was finally signed in 1921 re-establishing the demilitarised status of Åland as an autonomous part of Finland.[1]


The Åland Islands are located in the northern Baltic Sea between Sweden and Finland. The population is Swedish-speaking, but after the 1809 Treaty of Fredrikshamn the islands were ceded to the Russian Empire together with a vast majority of the Finnish-speaking areas of Sweden, becoming the Grand Duchy of Finland, an autonomous part of the Russian Empire. In the 1856 Treaty of Paris, settling the Crimean War, the Åland Islands were demilitarised. As World War I broke out in 1914, the Russian Empire turned the islands into a submarine base for the use of British and Russian navies.[2] On 25 July 1916, the German airship SL9 attacked the port of Mariehamn and bombed the boats of the Russian 5th submarine squadron and the mothership Svjatitel Nikolai, resulting the death of 7 Russian sailors.[3]

The Russian government also started building fortifications, in agreement with their allies France and Great Britain, in order to prevent the German invasion. Åland Islands were fortified with 10 coastal artillery batteries, several garrisons, docks and two airfields. Sweden, however, considered the structures too heavy for just defending the islands. The government feared a possible attack from Åland, and so the neutral Sweden felt pressured to join the Allied Powers. It did not however do so.[2]

Outbreak of the Finnish Civil War

As Finland gained its independence from Russia in December 1917, a movement was launched in Åland to join the islands to Sweden.[4] The Swedish government had an audience with a delegation from Åland calling action on the question. After the Finnish Civil War started in late January 1918, the Swedish prime minister Johannes Hellner and the king Gustaf V had an audience with a delegation from Åland on 8 February.[5] According to the delegation, a referendum had been held in Åland and a vast majority of 95% was willing to join Sweden.[6] The delegation called for action on the cause and asked help from the Swedish government against the alleged arbitrary and disorder of the Russian troops. The Swedish newspapers also pressed for action because of the humanitarian reasons.[5] Since the beginning of the war, the government had already evacuated more than 1,000 Swedish citizens from the Finnish mainland via the west coast town of Pori.[4]

The Finnish Civil War expanded to Åland on 10 February, as a squad of 460 White Guard members, led by the captain Johan Fabritius, from the Vakka-Suomi region landed the islands. The group had fled three days earlier from the town of Uusikaupunki and crossed the ice of the Archipelago Sea. After reaching Åland, the Whites had some minor clashes with troops supporting Lenin's Russian Government. On 14 February, they took the Prästö telegraph station in Sund, capturing 20 Russian soldiers. The Russians, however, had not much interest in resistance. They were mostly waiting to return home.[4]

The Swedish invasion

On 13 February, Swedish government finally decided to send troops to Åland.[7] Two days later, a naval detachment of the icebreaker Isbrytaren I, the coastal defense ship HSwMS Thor and the troopship SS Runeberg docked Eckerö in the Swedish side of the islands. A small military unit landed in Åland in order to protect the people from alleged misconduct of the Russian troops as well as from the violent threat of the Finnish sides of the Civil War. The Whites incorrectly assumed the Swedes had come to join them. Encouraged by this, the Whites took the artillery batteries in Boxö and Saggö, but instead of supporting them, the Swedes started negotiations with the Russians.[4]

The negotiation was stopped on 17 February, as 150-men Red Guard unit from Turku arrived in Åland with the icebreaker Murtaja. Their intention was to help the Russians in the presumed fight against the Swedes and the Whites. On the same day, the Whites took the village of Godby in Finström but the Soviets troops were able to keep the village of Jomala and the artillery fort of Sålis. Two days later, the Reds made a counterattack against Godby, but were pushed back. The Battle of Godby ended with 2 killed Whites and 3 killed Reds. 8 captured Reds was later executed. It remained the only Finnish Civil War battle fought in Åland.[4]

German troops landing by the Eckerö Mail and Customs House

As the situation in Åland had now escalated to open violence, the Swedes intervened the situation with a counterfeit order by the White Army commander C. G. E. Mannerheim calling the Whites to retreat from Åland. In reality, general Mannerheim wanted the Whites to take control of all the islands and then launch an offensive against Turku, the Red capital of Southwest Finland. As the Whites did not know Mannerheim's real intentions, they followed the false order and left Åland on 20 February.[4] As the White Finland found out about the Swedish conduct, they gave a strict objection. The Swedish government now had to convince that their purpose was not to join the islands to Sweden, but only to protect the Swedish-speaking people of Åland.[5]

On 19 February, HSwMS Sverige and HSwMS Oscar II carrying a company from the Vaxholm Coastal Artillery Regiment arrived at Åland to press the Soviets in leaving the islands.[8] The Central Committee of the Baltic Fleet still tried to avoid the armed conflict and on 22 February the political representative Vatslav Vorovsky stated the Soviets troops were willing to leave Åland. The order of disarmament was given a day after and the Finnish icebreaker Murtaja took 300 Russian Bolsheviks and the Finnish Red Guard fighters to Turku. On 24 February, the 500-man battalion of the Royal Göta Life Guards, commanded by the lieutenant colonel G. E. Ros,[7] landed at Eckerö and by the 2 March, the Swedes controlled all the islands, although there were still up to 1,200 disarmed Russian soldiers present.[4]

The German invasion

Captured Soviets are escorted to Eckerö

The armistice between Russia and Germany lapsed on 18 February 1918 and the Operation Faustschlag was soon launched by the Germans. This included the invasion of Åland, as the Germans did not know whether Sweden would remain neutral or join the Allies. The Germans had their interests in Finland because of the access to the Arctic Sea and the country's presence near the Murmansk railway and the Bolshevik capital of Saint Petersburg. To justify the invasion, Germany ordered a request of military assistance from their allies in Finland. The White Senate message requesting the German invasion of Åland reached Berlin on 22 February.[4] The German intention was to gather troops to Åland and then land the Finnish mainland in the west coast town of Rauma. As the ice in the Bothnian Bay was too thick, the landing was finally made in Hanko, Southern Finland, by the Baltic Sea Division in the first days of April.[8]

On 28 February, a naval unit of the battleships SMS Westfalen and SMS Rheinland, commanded by the admiral Hugo Meurer, left Danzig to Åland. The ships were carrying the Großherzoglich Mecklenburgisches Jäger-Bataillon Nr. 14, under the command of the major August Schenck zu Schweinsberg. The convoy was slowed down by the heavy ice, but finally the Aalands-Detachement reached Eckerö on 5 March. The following day, the Swedes were forced to make a deal with the Germans.[4] According to the agreement, Sweden and Germany now shared the Åland Islands. The Swedes had a hold on the capital Mariehamn and the villages of Jomala, Geta and Finström. Both were allowed to use the port of Eckerö.[9] A post of the Finnish military governor was established and filled by the naval officer Hjalmar von Bonsdorff as the representative of the White Senate.[4]

The Germans captured up to 1,000-1,200 Soviet soldiers which were shipped to Liep?ja. 250 Ukrainian, Polish, Latvian and Estonian soldiers of the Soviet army were placed to an internment camp in Sweden. These soldiers were later handed over to Germans and transported to Sassnitz in Northern Germany.[8] In Mariehamn, the Germans took several Russian warships and the Finnish steamer SS Baltic.[4]

On 10 March, the Finnish Reds proposed negotiations with the Germans over their potential threat against Turku, the Red capital of Southeast Finland. The Germans agreed to meet the Red delegation in Åland if they would bring the POWs kept in Turku.[10] In 1918 the Russians exchanged more than 65,000 wounded and invalid German POWs via Finland.[11] The Red delegation including the socialist philosopher Georg Boldt and the Turku militia leader William Lundberg, together with 260 POWs, travelled across the ice by horse-drawn sleigh. On 15 March, Boldt and Lundberg had a meeting with the Germans. However, the Reds were told that since the Germans were invited by the Whites, they could not discuss their intentions. Boldt and Lundberg were then escorted back to the mainland.[10]

In late March, the Germans launched a campaign in the Turku archipelago to secure the left wing of the forthcoming Baltic Sea Division landing in Hanko. The plan was to reach Turku from Åland via the islands of Houtskär, Korpo, Nagu and Pargas. Houtskär was taken by the Finnish Whites on 25 March and Korpo on 28 March, but the Reds stopped the German troops in the Battle of Nagu on 4 April. The Germans then left the archipelago and focused on the march from Hanko to Helsinki.[12]


Sweden pulled most of their troops from Åland on 14 March, but the ship Oscar II and one small military unit stayed until the end of the Finnish Civil War. The last Swedes retreated on 26 May 1918.[4] The Germans stayed in the Åland Islands until September 1918. After the war, Sweden was still willing to take the Åland Islands and wanted to solve the dispute in the Treaty of Versailles, but the question was not included.[2] A new referendum was held in 1919 and now 9,900 of the 10,000 voters wanted to join Sweden.[6] A year later, Great Britain took the case to the newly founded League of Nations. In June 1921, Åland was declared as a demilitarised and autonomous territory of Finland.[1][2]


During their seven-month military campaign in Åland, the Germans lost six men. Three of them were killed on 9 March as the icebreaker Hindenburg struck a mine off Eckerö and sunk. Two sailors drowned on 11 April when the SMS Rheinland grounded between the islands of Lågskär and Flötjan.[3] In addition to the casualties in Åland, seven Germans were killed in the Battle of Nagu in the Turku Archipelago.[13]

Swedish casualties were one man as an infantry sergeant committed suicide in April. The Whites had three killed in the Battle of Godby, two in the Battle of Korpo and one in the Battle of Nagu.[3][12]

The number of killed Russian Bolshevik soldiers is not clear but at least two soldiers died in the clashes against the Finnish Whites. One Soviet and one Finnish Red were shot by the Whites in late March as they were captured near the island of Vårdö. The order was given by the Finnish military governor Hjalmar von Bonsdorff and the execution was carried out by the Whites occupying the Turku Archipelago. In addition to the 3 Reds killed in the Battle of Godby, 8 captured Reds were shot by the Whites in the ice of Färjsundet Strait.[3] At least 26 also died in the Battle of Nagu and 7 in the Battle of Korpo.[12]


  1. ^ a b Pekkarinen, Jussi (19 March 2008). "Åland - To Finland or to Sweden?". Ministry for Foreign Affairs of Finland. Archived from the original on 1 March 2017. Retrieved 2017.
  2. ^ a b c d Sauramo, Lauri (1937). "Ahvenanmaan sotilaallinen ja sotilaspoliittinen merkitys". Tiede ja ase. 5: 198-202. Retrieved 2017.
  3. ^ a b c d Gustavsson, Kenneth (2004). "Venäjän laivaston sotasurmat Ahvenamaalla vuosina 1914-18". Venäläissurmat Suomessa 1914-22. Osa 1. Sotatapahtumat 1914-17. Helsinki: The Prime Minister's Office of Finland. pp. 68-70, 76-80. ISBN 978-952-49838-3-9.
  4. ^ a b c d e f g h i j k l Harjula, Mirko (2010). Itämeri 1914-1921: Itämeren laivastot maailmansodassa sekä Venäjän vallankumouksissa ja sisällissodassa. Helsinki: Books on Demand. pp. 82-83, 86-87. ISBN 978-952-49838-3-9.
  5. ^ a b c Apunen, Osmo (1991). Itsenäisen Suomen historia 1. Rajamaasta tasavallaksi. Jyväskylä: Gummerus. pp. 234-235. ISBN 951-35515-8-X.
  6. ^ a b Lindqvist, Herman (29 March 2014). "Då höll Åland på att bli en del av Sverige". Aftonbladet (in Swedish). Retrieved 2017.
  7. ^ a b "Ålandsexpeditionen 1918". Nordisk familjebok (in Swedish). 1922. Retrieved 2017.
  8. ^ a b c Eerola, Jari (20 March 2001). "Saksalaisten maihinnousu Ahvenanmaalle, Hankoon ja Loviisaan maalis-huhtikuussa 1918" (in Finnish). Retrieved 2017.
  9. ^ "Landing of German troops". Histdoc. 6 March 1918. Retrieved 2017.
  10. ^ a b Lahtinen, Rauno (2016). Punainen Turku 1917-1918. Turku: Sammakko Publishers. ISBN 978-952-48332-5-7.
  11. ^ Gronow, Kira & Green, Mia (9 August 2015). "He tulivat Tornioon ilman jalkoja - harvinaiset kuvat kertovat vaietusta sotavankien vaihdosta". Helsingin Sanomat (in Finnish). Retrieved 2017.CS1 maint: multiple names: authors list (link)
  12. ^ a b c Vainio, Seppo (2008). Saksalaiset Suomen sisällissodassa 1918. Vantaa: Seppo Vainio. pp. 10-11. ISBN 978-952-92425-5-9.
  13. ^ Olsio, Tuiju (2005). "Nauvo, Provinz Varsinais-Suomi, Finnland". Onlineprojekt Gefallenendenkmäler (in German). Retrieved 2017.

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