Question: When did the U.S. and the country where Winchester is located become allies?

full_context: Document 1: London: During the 12th century, the institutions of central government, which had hitherto accompanied the royal English court as it moved around the country, grew in size and sophistication and became increasingly fixed in one place. In most cases this was Westminster, although the royal treasury, having been moved from Winchester, came to rest in the Tower. While the City of Westminster developed into a true capital in governmental terms, its distinct neighbour, the City of London, remained England's largest city and principal commercial centre, and it flourished under its own unique administration, the Corporation of London. In 1100, its population was around 18,000; by 1300 it had grown to nearly 100,000.
Document 2: Southampton: Southampton (i/saʊθˈæmptən, -hæmptən/) is the largest city in the ceremonial county of Hampshire on the south coast of England, and is situated 75 miles (121 km) south-west of London and 19 miles (31 km) north-west of Portsmouth. Southampton is a major port and the closest city to the New Forest. It lies at the northernmost point of Southampton Water at the confluence of the River Test and River Itchen, with the River Hamble joining to the south of the urban area. The city, which is a unitary authority, has an estimated population of 253,651. The city's name is sometimes abbreviated in writing to "So'ton" or "Soton", and a resident of Southampton is called a Sotonian.
Document 3: United Kingdom–United States relations: Through times of war and rebellion, peace and estrangement, as well as becoming friends and allies, Britain and the US cemented these deeply rooted links during World War II into what is known as the ``Special Relationship. ''In long - term perspective, the historian Paul Johnson has called it the`` cornerstone of the modern, democratic world order''.
Document 4: United Kingdom–United States relations: British -- American relations, also referred to as Anglo - American relations, encompass many complex relations ranging from two early wars to competition for world markets. Since 1940 they have been close military allies enjoying the Special Relationship built as wartime allies, and NATO partners.
Document 5: Great power: Referring to great power relations pre-1960, Joshua Baron highlights that starting from around the 16th century and the rise of several European great powers, military conflicts and confrontations was the defining characteristic of diplomacy and relations between such powers. "Between 1500 and 1953, there were 64 wars in which at least one great power was opposed to another, and they averaged little more than five years in length. In approximately a 450-year time frame, on average at least two great powers were fighting one another in each and every year." Even during the period of Pax Britannica (or "the British Peace") between 1815 and 1914, war and military confrontations among the great powers was still a frequent occurrence. In fact, Joshua Baron points out that, in terms of militarized conflicts or confrontations, the UK led the way in this period with nineteen such instances against; Russia (8), France (5), Germany/Prussia (5) and Italy (1).
Document 6: Soviet Union–United States relations: The relations between the United States of America and the Union of Soviet Socialist Republics (1922 -- 1991) succeeded the previous relations from 1776 to 1917 and predate today's relations that began in 1992. Full diplomatic relations between the two countries were established late due to mutual hostility. During World War II, the two countries were briefly allies. At the end of the war, the first signs of post-war mistrust and hostility began to appear between the two countries, escalating into the Cold War; a period of tense hostile relations, with periods of détente.
Document 7: Russia–United Kingdom relations: The two countries fought each other (albeit only with some very limited naval combat) during the Anglo - Russian War (1807 -- 12), after which Britain and Russia became allies against Napoleon in the Napoleonic Wars. They both played major cooperative roles at the Congress of Vienna in 1814 - 1815.
Document 8: Overseas military bases of the United Kingdom: The United Kingdom is still considered and remains a global power even into the 21st century; this is evidenced through the nation's 15 overseas military bases, making it second only to the United States in terms of total overseas bases worldwide. Currently, there is also the possibility of an additional two new bases being built in Oman and the United Arab Emirates in the near future. Note that both the United Arab Emirates and Oman were once under British rule, showing the impact of colonialism and the British armed forces military presence across the globe, even into the 21st century.
Document 9: London: London i/ˈlʌndən/ is the capital and most populous city of England and the United Kingdom. Standing on the River Thames in the south eastern part of the island of Great Britain, London has been a major settlement for two millennia. It was founded by the Romans, who named it Londinium. London's ancient core, the City of London, largely retains its 1.12-square-mile (2.9 km2) medieval boundaries and in 2011 had a resident population of 7,375, making it the smallest city in England. Since at least the 19th century, the term London has also referred to the metropolis developed around this core. The bulk of this conurbation forms Greater London,[note 1] a region of England governed by the Mayor of London and the London Assembly.[note 2] The conurbation also covers two English counties: the small district of the City of London and the county of Greater London. The latter constitutes the vast majority of London, though historically it was split between Middlesex (a now abolished county), Essex, Surrey, Kent and Hertfordshire.
Document 10: Winchester: There was a fire in the city in 1141 during the Rout of Winchester. William of Wykeham played a role in the city's restoration. As Bishop of Winchester he was responsible for much of the current structure of the cathedral, and he founded the still extant public school Winchester College. During the Middle Ages, the city was an important centre of the wool trade, before going into a slow decline. The curfew bell in the bell tower (near the clock in the picture), still sounds at 8:00 pm each evening.
Document 11: France–United Kingdom relations: The French and British fought each other and made treaties with Native American tribes to gain control of North America. Both nations coveted the Ohio Territory and in 1753 a British expedition there led by George Washington clashed with a French force. Shortly afterwards the French and Indian War broke out, initially taking place only in North America but in 1756 becoming part of the wider Seven Years' War in which Britain and France were part of opposing coalitions.
Document 12: China–United States relations: Relations with China began under George Washington, leading to the 1845 Treaty of Wangxia. The United States was allied to the Republic of China during the Pacific War, but broke off relations with China for 25 years when the communist government took over, until Richard Nixon's 1972 visit to China. Since Nixon, every successive U.S. president has toured China. Relations between the two countries have generally been stable with some periods of open conflict, most notably during the Korean War and the Vietnam War. Currently, China and the United States have mutual political, economic, and security interests, including but not limited to the proliferation of nuclear weapons, although there are unresolved concerns relating to the role of democracy in the government in China and human rights in both respective countries. Relations with China have strained under Barack Obama's Asia pivot strategy, ongoing maritime disputes in the South China Sea, and a trade war in 2018.
Document 13: Southampton: Following the Norman Conquest in 1066, Southampton became the major port of transit between the then capital of England, Winchester, and Normandy. Southampton Castle was built in the 12th century and by the 13th century Southampton had become a leading port, particularly involved in the import of French wine in exchange for English cloth and wool.
Document 14: Winchester: Winchester is a city and the county town of Hampshire, England. The city lies at the heart of the wider City of Winchester, a local government district, and is located at the western end of the South Downs National Park, along the course of the River Itchen. It is situated 60 miles (97 km) south-west of London and 13.6 miles (21.9 km) from Southampton, its closest city. At the time of the 2011 Census, Winchester had a population of 45,184. The wider City of Winchester district which includes towns such as Alresford and Bishop's Waltham has a population of 116,800.Winchester developed from the Roman town of Venta Belgarum, which in turn developed from an Iron Age oppidum. Winchester's major landmark is Winchester Cathedral, one of the largest cathedrals in Europe, with the distinction of having the longest nave and overall length of all Gothic cathedrals in Europe. The city is home to the University of Winchester and Winchester College, the oldest public school in the United Kingdom still using its original buildings.
Document 15: London: By the 11th century, London was beyond all comparison the largest town in England. Westminster Abbey, rebuilt in the Romanesque style by King Edward the Confessor, was one of the grandest churches in Europe. Winchester had previously been the capital of Anglo-Saxon England, but from this time on, London became the main forum for foreign traders and the base for defence in time of war. In the view of Frank Stenton: "It had the resources, and it was rapidly developing the dignity and the political self-consciousness appropriate to a national capital."
ground_truth: Since 1940
sub_queries: In what country is the city of Winchester located? Answer: England
when did the us and England become allies Answer: Since 1940