At the start of World War II, Iceland was a kingdom in personal union with Denmark under King Christian X. Officially, the country remained neutral throughout the war, but global conflict quickly eroded its isolation. The military and political significance of Iceland’s location drew the attention of both Allied and Axis powers, with impacts still clear in modern Icelandic society.
The occupation and its fallout
In April 1940, Germany invaded Denmark, severing communication between Iceland and its traditional partner. Alarmed by German interest in the island, Britain sought Icelandic cooperation but met with refusals, as Reykjavik held firmly to neutrality and restricted the presence of warring powers’ ships and aircraft. Nonetheless, the strategic value of Iceland, lying along crucial North Atlantic shipping and air lanes, spurred British invasion on 10 May 1940. The initial force of 746 Royal Marines was soon reinforced by regular British and then Canadian troops. From July 1941, defense duties were transferred to the United States, still a neutral country itself until December of that year.
Tens of thousands of Allied troops, first British and then American, were stationed in Iceland during the conflict. Their arrival shaped everything from major infrastructure to daily life. Construction projects, such as Reykjavik Airport and later Keflavik Airport, created local employment and permanently altered transport links. Iceland also exported fish to the United Kingdom, an economic boost driven by wartime needs.
Social upheaval and tragedy
The arrival of foreign soldiers caused significant disruption. Their presence in Reykjavik and other towns became known as “Ástandið” (the situation), a term reflecting both the social mixing and tensions that followed. Relationships between Icelandic women and troops were common, leading to marriages and children who often grew up with the patronymic Hansson (meaning “his son” in Icelandic), referencing unknown or absent foreign fathers. This widespread contact caused hostility among some local men and prompted concerns over prostitution.
The war brought tragedy as well as change. Icelanders, reliant on fishing and shipping, were vulnerable to drifting mines, German U-boats and air attacks. Around 230 Icelanders died, most at sea when vessels were sunk. Notable incidents include the sinking of the El Grillo oil tanker at Seyðisfjörður in February 1944 by German bombers, and the loss of the trawler Reykjaborg to a U-boat in March 1941. Several Icelandic civilians were killed by foreign soldiers, at least four deaths, including children, were attributed to actions by U.S. personnel.
The occupation brought a degree of shelter but also highlighted the vulnerabilities of smaller nations in a world at war. Historians studying Iceland refer to the “shelter theory,” observing that small states often seek close relationships with larger powers for security.
Independence and legacy
As Denmark remained occupied, Iceland gradually distanced itself from the monarchy, opening a diplomatic legation in New York City. On 17 June 1944, amid the war’s upheavals, Iceland formally ended the union with Denmark and became a republic. British and American wartime constructions endure in the landscape, and the period, known as Stríðsárin (the war years), remains a turning point in Icelandic history.
Sources
- Wikipedia
- Wikipedia (Icelandic) in Icelandic
