Question: What was the position of the person who negotiated a treaty in 1795 with the country where Observer Corps is based?

full_context: Document 1: John Marshall: John Marshall (September 24, 1755 -- July 6, 1835) was an American politician. He was the fourth Chief Justice of the United States (1801 -- 1835). His court opinions helped lay the basis for United States constitutional law and many say he made the Supreme Court of the United States a coequal branch of government along with the legislative and executive branches. Previously, Marshall had been a leader of the Federalist Party in Virginia and served in the United States House of Representatives from 1799 to 1800. He was Secretary of State under President John Adams from 1800 to 1801 and, at the age of 45, became the last of the chief justices to be born in Colonial America.
Document 2: John Jay: John Jay (December 23, 1745 – May 17, 1829) was an American statesman, patriot, diplomat, Founding Father of the United States, negotiator and signatory of the Treaty of Paris of 1783, second Governor of New York, and the first Chief Justice of the United States (1789–1795). He directed U.S. foreign policy for much of the 1780s and was an important leader of the Federalist Party after the ratification of the United States Constitution in 1788.
Document 3: Anti-aircraft warfare: From the early 1930s eight countries developed radar, these developments were sufficiently advanced by the late 1930s for development work on sound locating acoustic devices to be generally halted, although equipment was retained. Furthermore, in Britain the volunteer Observer Corps formed in 1925 provided a network of observation posts to report hostile aircraft flying over Britain. Initially radar was used for airspace surveillance to detect approaching hostile aircraft. However, the German Würzburg radar was capable of providing data suitable for controlling AA guns and the British AA No 1 Mk 1 GL radar was designed to be used on AA gun positions.
Document 4: Military history of the United States: When revolutionary France declared war on Great Britain in 1793, the United States sought to remain neutral, but the Jay Treaty, which was favorable to Great Britain, angered the French government, which viewed it as a violation of the 1778 Treaty of Alliance. French privateers began to seize U.S. vessels, which led to an undeclared "Quasi-War" between the two nations. Fought at sea from 1798 to 1800, the United States won a string of victories in the Caribbean. George Washington was called out of retirement to head a "provisional army" in case of invasion by France, but President John Adams managed to negotiate a truce, in which France agreed to terminate the prior alliance and cease its attacks.
Document 5: Anti-aircraft warfare: German air attacks on the British Isles increased in 1915 and the AA efforts were deemed somewhat ineffective, so a Royal Navy gunnery expert, Admiral Sir Percy Scott, was appointed to make improvements, particularly an integrated AA defence for London. The air defences were expanded with more RNVR AA guns, 75 mm and 3-inch, the pom-poms being ineffective. The naval 3-inch was also adopted by the army, the QF 3 inch 20 cwt (76 mm), a new field mounting was introduced in 1916. Since most attacks were at night, searchlights were soon used, and acoustic methods of detection and locating were developed. By December 1916 there were 183 AA Sections defending Britain (most with the 3-inch), 74 with the BEF in France and 10 in the Middle East.
Document 6: John Marshall: John Marshall (September 24, 1755 -- July 6, 1835) was an American politician and the fourth Chief Justice of the United States (1801 -- 1835). His court opinions helped lay the basis for United States constitutional law and many say he made the Supreme Court of the United States a coequal branch of government along with the legislative and executive branches. Previously, Marshall had been a leader of the Federalist Party in Virginia and served in the United States House of Representatives from 1799 to 1800. He was Secretary of State under President John Adams from 1800 to 1801 and, at the age of 45, became the last of the chief justices to be born in Colonial America.
Document 7: Treaty of Paris (1783): This treaty and the separate peace treaties between Great Britain and the nations that supported the American cause -- France, Spain, and the Dutch Republic -- are known collectively as the Peace of Paris. Only Article 1 of the treaty, which acknowledges the United States' existence as free sovereign and independent states, remains in force.
Document 8: Federalist Party: Federalist policies called for a national bank, tariffs and good relations with Great Britain as expressed in the Jay Treaty negotiated in 1794. Hamilton developed the concept of implied powers and successfully argued the adoption of that interpretation of the United States Constitution. Their political opponents, the Democratic - Republicans led by Thomas Jefferson, denounced most of the Federalist policies, especially the bank and implied powers; and vehemently attacked the Jay Treaty as a sell - out of republican values to the British monarchy. The Jay Treaty passed and the Federalists won most of the major legislative battles in the 1790s. They held a strong base in the nation's cities and in New England. After the Democratic - Republicans, whose base was in the rural South, won the hard - fought presidential election of 1800, the Federalists never returned to power. They recovered some strength by their intense opposition to the War of 1812, but they practically vanished during the Era of Good Feelings that followed the end of the war in 1815.
Document 9: Anti-aircraft warfare: Initially sensors were optical and acoustic devices developed during the First World War and continued into the 1930s, but were quickly superseded by radar, which in turn was supplemented by optronics in the 1980s. Command and control remained primitive until the late 1930s, when Britain created an integrated system for ADGB that linked the ground-based air defence of the army's AA Command, although field-deployed air defence relied on less sophisticated arrangements. NATO later called these arrangements an "air defence ground environment", defined as "the network of ground radar sites and command and control centres within a specific theatre of operations which are used for the tactical control of air defence operations".
Document 10: Anti-aircraft warfare: Poland's AA defences were no match for the German attack and the situation was similar in other European countries. Significant AA warfare started with the Battle of Britain in the summer of 1940. 3.7-inch HAA were to provide the backbone of the groundbased AA defences, although initially significant numbers of 3-inch 20-cwt were also used. The Army's Anti-aircraft command, which was under command of the Air Defence UK organisation, grew to 12 AA divisions in 3 AA corps. 40-mm Bofors entered service in increasing numbers. In addition the RAF regiment was formed in 1941 with responsibility for airfield air defence, eventually with Bofors 40mm as their main armament. Fixed AA defences, using HAA and LAA, were established by the Army in key overseas places, notably Malta, Suez Canal and Singapore.
Document 11: Treaty of Paris (1783): However, the Americans realized that they could get a better deal directly from London. John Jay promptly told the British that he was willing to negotiate directly with them, cutting off France and Spain. The British Prime Minister Lord Shelburne agreed. He was in charge of the British negotiations (some of which took place in his study at Lansdowne House, now a bar in the Lansdowne Club) and he now saw a chance to split the United States away from France and make the new country a valuable economic partner. The western terms were that the United States would gain all of the area east of the Mississippi River, north of Florida, and south of Canada. The northern boundary would be almost the same as today. The United States would gain fishing rights off Canadian coasts, and agreed to allow British merchants and Loyalists to try to recover their property. It was a highly favorable treaty for the United States, and deliberately so from the British point of view. Prime Minister Shelburne foresaw highly profitable two - way trade between Britain and the rapidly growing United States, as indeed came to pass.
Document 12: Jay Treaty: Jay Treaty Treaty of Amity, Commerce, and Navigation, Between His Britannic Majesty and The United States of America First page of the Jay Treaty Context To relieve post-war tension between Britain and the United States Signed November 19, 1794 (1794 - 11 - 19) Location London Effective February 29, 1796 (1796 - 02 - 29) Negotiators William Grenville, 1st Baron Grenville John Jay Signatories Kingdom of Great Britain United States Jay's Treaty at Wikisource
Document 13: Anti-aircraft warfare: Throughout the 20th century air defence was one of the fastest-evolving areas of military technology, responding to the evolution of aircraft and exploiting various enabling technologies, particularly radar, guided missiles and computing (initially electromechanical analog computing from the 1930s on, as with equipment described below). Air defence evolution covered the areas of sensors and technical fire control, weapons, and command and control. At the start of the 20th century these were either very primitive or non-existent.
Document 14: Unsuccessful nominations to the Supreme Court of the United States: John Jay resigned as Chief Justice on June 29, 1795, after being elected Governor of New York. The subsequent nomination of John Rutledge as Chief Justice was rejected by a vote of 10 -- 14 on December 15, 1795. Rutledge's strident and vocal opposition to the Jay Treaty may have been the main reason for his rejection. Because he had been a recess appointment, Rutledge served as Chief Justice for one term. Washington nominated Associate Justice William Cushing to replace him as Chief Justice, but Cushing declined the role. Washington then successfully appointed Oliver Ellsworth to serve as the next Chief Justice.
Document 15: Treaty of Paris (1783): The Treaty of Paris, signed in Paris by representatives of King George III of Great Britain and representatives of the United States of America on September 3, 1783, ended the American Revolutionary War. The treaty set the boundaries between the British Empire in North America and the United States, on lines ``exceedingly generous ''to the latter. Details included fishing rights and restoration of property and prisoners of war.
ground_truth: Chief Justice of the United States
sub_queries: Where was the Observer Corps based? Answer: Britain
minister to Britain who negotiated a treaty in 1795 Answer: John Jay
What is the position of John Jay ? Answer: Chief Justice of the United States