Question: Who was U.S. president immediately following the conflict in which Ernest Hardcastle fought?

full_context: Document 1: Ernest Maunoury: Sous Lieutenant Ernest Joseph Jules Maunoury was a French flying ace during World War I. He was credited with eleven confirmed aerial victories. He survived the war, only to die in a flying accident on 21 September 1921.
Document 2: Ernest Stafford Carlos: Ernest Stafford Carlos (1883–1917) was a British painter and war artist. He is best known for his works depicting the early days of the Scout Movement. He joined the British Army and was killed during the First World War.
Document 3: Charles Arnison: Lieutenant Charles Henry Arnison (13 January 1893 – 4 September 1974) was a British World War I flying ace credited with nine aerial victories. He won the Military Cross for valour in World War I, and returned to the RAF to serve in World War II.
Document 4: History of the United States Congress: Following the end of the war, the Wilson administration was plagued with numerous problems such as: 1) the large support against President Wilson's support for US membership into the League of Nations (which was regarded by the American public as an organization that could have introduced a German - American relationship) -; 2) the massive Steel Strike of 1919 3) race riots, and 4) the growing support among the American public, who now feared Communists would infiltrate the country, to reduce immigration. As a result, the Republican party would obtain a firmer majority control of both Congressional houses, in the 1920 congressional election, and score a heavy win the 1920 US Presidential Election as well; Republican Presidential candidate Warren Harding, a pro-laissez faire conservative, would also receive a record - breaking percent of the popular vote as well. However, the Harding administration could not bring the economy back to normal. Although the Republicans were able to retain control of both houses of Congress, the conservative Republicans (whom Harding backed) would suffer major losses.
Document 5: Ernest Hardcastle: Lieutenant Ernest Hardcastle (31 December 1898 – November 1973) was an English World War I flying ace observer/gunner credited with twelve aerial victories. He would return to military service during World War II.
Document 6: Woodrow Wilson: Thomas Woodrow Wilson (December 28, 1856 -- February 3, 1924) was an American statesman and academic who served as the 28th President of the United States from 1913 to 1921. A member of the Democratic Party, Wilson served as the President of Princeton University from 1902 to 1910, and as Governor of New Jersey from 1911 to 1913, before winning the 1912 presidential election. As president, he oversaw the passage of progressive legislative policies unparalleled until the New Deal in 1933. He also led the United States during World War I, establishing an activist foreign policy known as ``Wilsonianism. ''He was one of the three key leaders at the 1919 Paris Peace Conference, where he championed a new League of Nations, but he was unable to win Senate approval for U.S. participation in the League.
Document 7: Jones Law (Philippines): Woodrow Wilson said, during the 1912 election campaign which made him US President, ``The Philippines are at present our frontier but I hope we presently are to deprive ourselves of that frontier. ''Even before the 1912 elections, U.S. House Committee on Insular Affairs Chairman William Atkinson Jones attempted to launch a bill which set a fixed date for Philippine independence. Manuel L. Quezon was one of the Philippines' two resident commissioners to the US House of Representatives. Jones delayed to launch his bill, so Quezon drafted the first of two`` Jones Bills.'' He drafted a second Jones Bill in early 1914 after the election of Wilson as president and his appointment of Francis Burton Harrison as President of the Philippine Commission and Governor General of the Philippines.
Document 8: Theodore Roosevelt: Theodore Roosevelt Jr. (/ ˈroʊzəvɛlt / ROH - zə - velt; October 27, 1858 -- January 6, 1919) was an American statesman, author, explorer, soldier, and naturalist, who served as the 26th President of the United States from 1901 to 1909. He also served as the 25th Vice President of the United States from March to September 1901 and as the 33rd Governor of New York from 1899 to 1900. As a leader of the Republican Party during this time, he became a driving force for the Progressive Era in the United States in the early 20th century. His face is depicted on Mount Rushmore, alongside those of George Washington, Thomas Jefferson, and Abraham Lincoln.
Document 9: Theodore Roosevelt: Theodore Roosevelt Jr. (/ ˈroʊzəvɛlt / ROH - zə - velt; October 27, 1858 -- January 6, 1919) was an American statesman and writer who served as the 26th President of the United States from 1901 to 1909. He also served as the 25th Vice President of the United States from March to September 1901 and as the 33rd Governor of New York from 1899 to 1900. As a leader of the Republican Party during this time, he became a driving force for the Progressive Era in the United States in the early 20th century. His face is depicted on Mount Rushmore, alongside those of George Washington, Thomas Jefferson, and Abraham Lincoln.
Document 10: Ernesto Cabruna: "Capitano" Ernesto Cabruna (1889–1960) was a professional soldier who became a World War I flying ace credited with eight aerial victories. He served in Italy's military police, beginning in 1907. After service in Libya and Rhodes, he received a Bronze Medal for Military Valor a year after Italy's involvement in World War I began. He turned to aviation, became a pilot, and as such earned his first Silver Medal for Military Valor at the end of 1917.
Document 11: Treaty of Versailles: After the Versailles conference, Democratic President Woodrow Wilson claimed that ``at last the world knows America as the savior of the world! ''However, the Republican Party, led by Henry Cabot Lodge, controlled the US Senate after the election of 1918, and the senators were divided into multiple positions on the Versailles question. It proved possible to build a majority coalition, but impossible to build a two - thirds coalition that was needed to pass a treaty.
Document 12: Woodrow Wilson House (Washington, D.C.): The Woodrow Wilson House was the residence of the Twenty-Eighth President of the United States, Woodrow Wilson after he left office. It is at 2340 S Street NW just off Washington, D.C.'s Embassy Row. On February 3, 1924, Wilson died in an upstairs bedroom. It was designated a National Historic Landmark in 1964. The National Trust for Historic Preservation owns the house and operates it as a museum.
Document 13: Franklin D. Roosevelt: Franklin Delano Roosevelt (/ ˈroʊzəvəlt /, his own pronunciation, or / ˈroʊzəvɛlt /; January 30, 1882 -- April 12, 1945), commonly known as FDR, was an American statesman and political leader who served as the 32nd President of the United States from 1933 until his death in 1945. A Democrat, he won a record four presidential elections and emerged as a central figure in world events during the mid-20th century. He directed the United States government during most of the Great Depression and World War II. As a dominant leader of his party, he built the New Deal Coalition, realigning American politics into the Fifth Party System and defining American liberalism throughout the middle third of the 20th century. He is often rated by scholars as one of the three greatest U.S. Presidents, along with George Washington and Abraham Lincoln.
Document 14: Edward Gribben: Edward Gribben was a World War I flying ace credited with five aerial victories. He became a lieutenant-colonel in the Territorial Army between the wars, returning to the RAF in World War II, and rising to the rank of squadron leader.
Document 15: Hans Rosencrantz: Lieutenant Hans Rosencrantz was a World War I flying ace credited with five aerial victories, shared with his pilot Wilhelm Fahlbusch.
ground_truth: Thomas Woodrow Wilson
sub_queries: Ernest Hardcastle >> conflict Answer: World War I
who was president of the united states immediately following World War I i Answer: Thomas Woodrow Wilson