The American Expeditionary Forces (AEF) was the expeditionary force of the United States Army during World War I.
 It was established on July 5, 1917, in France under the command of General John J. Pershing.
 During the United States campaigns in World War I it fought alongside the French Army, British Army, and Canadian Army on the Western Front, against the German Empire.
 A minority of the AEF troops also fought alongside the Italian Army in that same year, against the Austro-Hungarian Army.
 The AEF helped the French Army on the Western Front during the Aisne Offensive (at the Battle of Château-Thierry (1918) and Battle of Belleau Wood) in the summer of 1918, and the AEF fought its major actions in the Battle of Saint-Mihiel and the Meuse-Argonne Offensive in the latter part of 1918.
The Tank Corps of the American Expeditionary Forces was the mechanized unit that engaged in tank warfare for the American Expeditionary Force (AEF) on the Western Front during World War I.
Helen Fairchild (November 21, 1885 – January 18, 1918) was an American nurse who served as part of the American Expeditionary Force during World War I, and who became known for her wartime letters to her family in the U.S., which vividly depicted the realities of combat nursing during World War I.
 She died of post-operative complications after surgery for a gastric ulcer while on duty with British base hospital #10/#16 on the Western Front.
General of the Armies John Joseph "Black Jack" Pershing (September 13, 1860 – July 15, 1948) was a senior United States Army officer.
 His most famous post was when he served as the commander of the American Expeditionary Force (AEF) on the Western Front in World War I, 1917–18.
Many British nationals from the United Kingdom or colonies who were resident in Canada during the First World War joined the Canadian Expeditionary Force, which was deployed to the Western Front.
 A sizeable percentage of Bermuda's volunteers who served in the war joined the CEF or the Royal Canadian Navy (RCN), either because they were resident in Canada already, or because Canada was the easiest other part of the British Empire and Commonwealth to reach from Bermuda (1,239 kilometres (770 miles) from Nova Scotia).
 As several CEF battalions were posted to the Bermuda Garrison before proceeding to France, islanders were also able to enlist there.
 Although the Bermuda Militia Artillery (BMA) and Bermuda Volunteer Rifle Corps (BVRC) both sent contingents to the Western Front, the first would not arrive there until June 1915.
 By then, many Bermudians had already been serving on the Western Front in the CEF for months.
 No further contingents were sent to France by the BVRC after 1916, however forty-seven BVRC NCOs and Riflemen (Privates) were permitted to re-enlist in Canada during the course of the war.
 Although some enlisted in British Army organs in Canada, including the Royal Flying Corps, most joined the Canadian Expeditionary Force.
 Bermudians in the CEF enlisted under the same terms as Canadians.
This article is about the United States campaigns in World War I. American entry into World War I in early April 1917 resulted in the American Expeditionary Force (AEF) on the Western Front, under General John J. Pershing, being engaged in 13 campaigns, during the period 1917–18, for which campaign streamers were designated.
 The streamer uses the colors of the World War I Victory Medal ribbon which had a red center with a rainbow on each side of the center stripe and a purple edge.
 The double rainbow symbolizes the dawn of a new era and the calm which follows the storm.
The United States declared war on Germany on April 6, 1917, during World War I.
 The U.S. was an independent power and did not officially join the Allies.
 It closely cooperated with the Allies militarily but acted alone in diplomacy.
 The U.S. made its major contributions in terms of supplies, raw material and money, starting in 1917.
 American soldiers under General John Pershing, Commander-in-Chief (C-in-C) of the American Expeditionary Force (AEF), arrived in large numbers on the Western Front in the summer of 1918.
 Before entering the war, the U.S. had remained neutral, though it had been an important supplier to Great Britain and the other Allied powers.
 During the war, the U.S. mobilized over 4 million military personnel and suffered 110,000 deaths, including 43,000 due to the influenza pandemic.
 The war saw a dramatic expansion of the United States government in an effort to harness the war effort and a significant increase in the size of the U.S. Armed Forces.
 After a relatively slow start in mobilizing the economy and labor force, by spring 1918, the nation was poised to play a role in the conflict.
 Under the leadership of President Woodrow Wilson, the war represented the climax of the Progressive Era as it sought to bring reform and democracy to the world, although there was substantial public opposition to U.S. entry into the war.
The Meuse-Argonne Offensive, also known as the Maas-Argonne Offensive and the Battle of the Argonne Forest, was a major part of the final Allied offensive of World War I that stretched along the entire Western Front.
 It was fought from 26 September 1918 until the Armistice of 11 November 1918, a total of 47 days.
 The Meuse-Argonne Offensive was the largest in United States military history, involving 1.2 million American soldiers.
 It was one of a series of Allied attacks known as the Hundred Days Offensive, which brought the war to an end.
 The battle cost 28,000 German lives and 26,277 American lives.
 It was the largest and bloodiest operation of World War I for the American Expeditionary Force (AEF), which was commanded by General John J. Pershing, and one of the deadliest battles in American history.
 American losses were exacerbated by the inexperience of many of the troops, and tactics used during the early phases of the operation.
The Pershing Hall is a historical building and luxury hotel in Paris, France dedicated to General of the Armies John J. Pershing.
 The cornerstone of the building, which can be seen from the courtyard, is the identical keystone of the old Chateau-Thierry bridge which spanned the Marne at the point where the American troops turned the tide of the German advance on Paris.
The Canadian Expeditionary Force (CEF) was the designation of the field force created by Canada for service overseas in the First World War.
 The force fielded several combat formations on the Western Front in France and Belgium, the largest of which was the Canadian Corps, consisting of four divisions.
 The Canadian Cavalry Brigade and the Canadian Independent Force, which were independent of the Canadian Corps, also fought on the Western Front.
 The CEF also had a large reserve and training organization in England, and a recruiting organization in Canada.
 In the later stages of the European war, particularly after their success at Vimy Ridge and Passchendaele, the Canadian Corps was regarded by friend and foe alike as the most effective Allied military formation on the Western Front.
 The Germans went so far as to call them "storm troopers" for their great combat efficiency.
 In August 1918, the CEF's Canadian Siberian Expeditionary Force travelled to revolution-torn Russia.
 It reinforced an anti-Bolshevik garrison in Vladivostok during the winter of 1918–19.
 At this time, another force of Canadian soldiers were placed in Archangel, where they fought against Bolsheviks.

Question: What city in France has a hall named after the commander of the American Expeditionary Force  on the Western Front in World War I?
Answer: Paris