Question: RAF Skellingthorpe was operational during the war that lasted during what time frame?

full_context: Document 1: Avro Lincoln: The Avro Type 694, better known as the Avro Lincoln, was a British four-engined heavy bomber, which first flew on 9 June 1944. Developed from the Avro Lancaster, the first Lincoln variants were initially known as the Lancaster IV and V, these were subsequently renamed Lincoln I and II. It holds the distinction of being the last piston-engined bomber operated by the Royal Air Force (RAF).
Document 2: World War II casualties: World War II was the deadliest military conflict in history in absolute terms of total casualties. Over 60 million people were killed, which was about 3% of the 1940 world population (est. 2.3 billion). The tables below give a detailed country-by-country count of human losses. World War II fatality statistics vary, with estimates of total deaths ranging from 50 million to more than 80 million. The higher figure of over 80 million includes deaths from war-related disease and famine. Civilians killed totalled 50 to 55 million, including 19 to 28 million from war-related disease and famine. Military deaths from all causes totalled 21 to 25 million, including deaths in captivity of about 5 million prisoners of war.
Document 3: RAF North Killingholme: Royal Air Force North Killingholme or more simply RAF North Killingholme is a former Royal Air Force station located immediately west of the village of North Killingholme in North Lincolnshire.
Document 4: RAF Skellingthorpe: Royal Air Force Skellingthorpe or more simply RAF Skellingthorpe is a former Royal Air Force station which was operational during the Second World War. It was located in the city of Lincoln, England. It was known as "Skelly" by the RAF personnel serving there.
Document 5: Skellingthorpe: Skellingthorpe is a village and civil parish in the North Kesteven district of Lincolnshire, England. The population of the civil parish at the 2011 census was 3,465. It is situated 3 mi west from Lincoln city centre, and just outside the A46 Lincoln ring road.
Document 6: Ulceby Aerodrome Platform railway station: Ulceby Aerodrome Platform railway station was situated 74 chain north east of Ulceby North Junction between Ulceby and the village of South Killingholme, Lincolnshire, England. It was opened by LNER to serve the Second World War airfield RAF North Killingholme, whose southern perimeter lay a short distance to the north.
Document 7: Military history of Canada during World War II: The military history of Canada during the Second World War begins with the German invasion of Poland on 1 September 1939. While the Canadian Armed Forces were eventually active in nearly every theatre of war, most combat was centred in Italy, Northwestern Europe, and the North Atlantic. Over the course of the war, more than 1.1 million Canadians served in the Canadian Army, Royal Canadian Navy, Royal Canadian Air Force, and in forces across the Commonwealth. More than 44,000 lost their lives and 54,000 were wounded. The financial cost was $21.8 billion between 1939 and 1950. By the end of the war Canada had the world's fourth largest air force, and fifth largest navy. The Canadian Merchant Navy completed over 25,000 voyages across the Atlantic, 130,000 Allied pilots were trained in Canada in the British Commonwealth Air Training Plan. On D-Day, 6 June 1944 the 3rd Canadian Infantry Division landed on "Juno" beach in Normandy, in conjunction with allied forces. The Second World War had significant cultural, political and economic effects on Canada, including the conscription crisis in 1944 which affected unity between francophones and anglophones. The war effort strengthened the Canadian economy and furthered Canada's global position.
Document 8: World War I: World War I (WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history. Over nine million combatants and seven million civilians died as a result of the war (including the victims of a number of genocides), a casualty rate exacerbated by the belligerents' technological and industrial sophistication, and the tactical stalemate caused by gruelling trench warfare. It was one of the deadliest conflicts in history, and paved the way for major political changes, including revolutions in many of the nations involved. Unresolved rivalries still extant at the end of the conflict contributed to the start of the Second World War only twenty-one years later.
Document 9: World War I: World War I (WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history. Over nine million combatants and seven million civilians died as a result of the war (including the victims of a number of genocides), a casualty rate exacerbated by the belligerents' technological and industrial sophistication, and the tactical stalemate caused by gruelling trench warfare. It was one of the deadliest conflicts in history, and paved the way for major political changes, including revolutions in many of the nations involved. Unresolved rivalries still extant at the end of the conflict contributed to the start of the Second World War only twenty-one years later.
Document 10: The Second World War (disambiguation): The Second World War was a global war that lasted from 1939 to 1945.
Document 11: RAF East Kirkby: Royal Air Force East Kirkby or more simply RAF East Kirkby is a former Royal Air Force station near the village of East Kirkby, south of Horncastle in Lincolnshire, just off the A155. The Greenwich meridian passes through the base.
Document 12: Birchwood, Lincolnshire: Birchwood is a housing estate in the south of Lincoln, Lincolnshire, England. The population of the Birchwood Ward of Lincoln City Council at the 2011 census was 8,520. It is built on the site of former RAF Skellingthorpe.
Document 13: World War III: World War III (WWIII or WW3) and the Third World War are names given to a hypothetical third worldwide large-scale military conflict subsequent to World War I and World War II. The term has been in use since the end of World War II. Some have applied it loosely to refer to limited or smaller conflicts such as the Cold War or the War on Terror, while others have operated under the assumption that such a conflict would surpass both prior World Wars in both the level of its widespread scope and of its overall destructive impact.
Document 14: World War II: World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's countries—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of total war, the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources.
Document 15: List of German military equipment of World War II: The following is a list of German military equipment of World War II which includes artillery, vehicles and vessels. World War II was a global war that was under way by 1939 and ended in 1945. Following political instability build-up in Europe from 1930, the Germans, which aimed to dominate Europe, attacked Poland on 1 September 1939, marking the start of World War II. The war in Europe ended 8 May 1945 with capitulation of Germany to the Allied forces.
ground_truth: 1939 to 1945