Key Facts
- Year of invasion
- 1918
- First invader
- Sweden (late February 1918)
- Second invader
- German Empire (early March 1918)
- German occupation ended
- September 1918
- Final settlement
- Åland Convention signed 1921
Strategic Narrative Overview
Sweden landed forces in late February 1918, and Germany followed with its own invasion in early March, quickly taking control of the islands. Russian troops were captured by the Germans, and minor clashes occurred between Finnish White and Red forces. The Swedish forces withdrew by the end of the Finnish Civil War in May 1918, leaving Germany in sole occupation until September 1918 when German forces also departed.
01 / The Origins
During the Finnish Civil War and the broader World War I, the Åland Islands remained garrisoned by Soviet Russian troops following Russia's revolutionary upheaval. Sweden, claiming cultural and historical ties to the Swedish-speaking population, and the German Empire, seeking to extend its Baltic influence and support the Finnish Whites, both moved to fill the power vacuum left by the collapsing Russian presence on the strategically located archipelago.
03 / The Outcome
With the end of World War I and the German withdrawal in September 1918, the status of Åland became an international dispute. The matter was referred to the Paris Peace Conference in 1919 and then to the League of Nations in 1920. The Åland Convention of 1921 resolved the question by confirming the islands as an autonomous, demilitarised part of Finland, a status that remains in force today.
Belligerents & Mobilization Analysis
Side A
2 belligerents
Side B
2 belligerents