Kingdom of Iceland

The Kingdom of Iceland was the Icelandic state as an associated state of Denmark — prior to Denmark's invasion by Nazi Germany — and as a kingdom under a personal union established by the Act of Union signed on 1 December 1918. The Act recognized Iceland as a sovereign country united with Denmark under a common king, while the Parliament of Iceland asked that Denmark represent Iceland internationally, with day-to-day matters delegated to a Danish plenipotentiary for Icelandic affairs; the government sat at Reykjavík. The kingdom lasted twenty-six years, its course overtaken by the Second World War: after Denmark was invaded and occupied by Nazi Germany in 1940, the union's working premise was broken, Iceland was occupied by Allied forces, and communication with the occupied Danish government was cut. On 17 June 1944 a national referendum established the republic of Iceland in the kingdom's place, severing the personal union with a Denmark still under occupation and making Iceland a fully independent republic.