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
Flora of the Faroe Islands the abundance of "Corylus" pollen in deep layers, suggest that at least some local stands of birch and hazel trees were present in the Faroe Islands, prior to human settlement. Four species of willow are still present in the Faroe Islands: "Salix herbacea" is very common in the mountains, but the other three species: "Salix phylicifolia", "Salix lanata" and "Salix arctica" are only to be found in a few places, due to heavy grazing by animals. Only one evergreen, "Juniperus communis" (the prostrate form) grows naturally in the Faroe Islands, and small populations are spread throughout the islands, though for