Faroe Islands with the foundation of political parties of the Faroe Islands. In the first year of World War II, on 12 April 1940, British troops occupied the Faroe Islands, shortly after the Operation Weserübung with the Nazi German invasion of Denmark on 9 April 1940. In 1942–1943 the British Royal Engineers, under the leadership of Lt. Col. William Law MC, built the only airport in the Faroe Islands, Vágar Airport. Control of the islands reverted to Denmark following the war, but Danish rule had been undermined, and Iceland's independence served as a precedent for many Faroese. The Faroese independence referendum, 1946
Geology of the Faroe Islands erupted, plate tectonics has slowly moved the Faroe Islands away from the active volcanic region, which today is concentrated in Iceland and along the Mid-Atlantic Ridge. Meanwhile, the majority of the Faroe–Rockall Plateau has subsided beneath sea level while erosive forces–especially during the last few million years of alternating glacial and interglacial periods–have sculpted the landscape into their present-day shape. The overall thickness of volcanic and intervening rock layers of the Faroe Islands is more than , of which only is located above the present sea level. A deep well in Lopra, Suðuroy, has revealed details of the lower strata.