when did the first us troops arrive in france ww1
American Expeditionary Forces 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 Gen. John J. Pershing. During the United States campaigns in World War I it fought, alongside French and British troops, against the German Empire. Some of the troops fought alongside Italian forces in that same year, against the Austro-Hungarian Army. It helped the French Army on the Western Front during the Aisne Offensive (at Château-Thierry and Belleau Wood) in June 1918, and fought its major actions in the Saint-Mihiel and Meuse-Argonne Offensives in late 1918.
Aviation in World War I At the start of the war, there was some debate over the usefulness of aircraft in warfare. Many senior officers, in particular, remained sceptical. However the initial campaigns of 1914 proved that cavalry could no longer provide the reconnaissance expected by their generals, in the face of the greatly increased firepower of twentieth century armies, and it was quickly realised that aircraft could at least locate the enemy, even if early air reconnaissance was hampered by the newness of the techniques involved. Early skepticism and low expectations quickly turned to unrealistic demands beyond the capabilities of the primitive aircraft available.[3]
World War I The trigger for the war was the assassination of Archduke Franz Ferdinand of Austria, heir to the throne of Austria-Hungary, by Yugoslav nationalist Gavrilo Princip in Sarajevo on 28 June 1914. This set off a diplomatic crisis when Austria-Hungary delivered an ultimatum to the Kingdom of Serbia[12][13] and, as a result, entangled international alliances formed over the previous decades were invoked. Within weeks the major powers were at war, and the conflict soon spread around the world.
American Revolutionary War On April 18, 1775, 700 troops were sent to confiscate militia ordnance stored at Concord.[94][95] Fighting broke out, forcing the regulars to conduct a fighting withdrawal to Boston. Overnight, the local militia converged on and laid siege to Boston.[96] On March 25, 4,500 British reinforcements arrived with three senior generals; William Howe, John Burgoyne and Henry Clinton.[97] On June 17, the British seized the Charlestown peninsular after a costly frontal assault,[98][99] leading Howe to replace Gage.[100] Many senior officers were dismayed at the attack which had gained them little,[101] while Gage wrote to London stressing the need for a large army to suppress the revolt.[102] On July 3, George Washington took command of the Continental Army besieging Boston. Howe made no effort to attack, much to Washington's surprise.[103] After a plan to assault the city was rejected,[104] in early March 1776, the Americans fortified Dorchester Heights with heavy artillery captured from a raid on Fort Ticonderoga.[105] On March 17, the British were permitted to withdraw unmolested, sailing to Halifax, Nova Scotia. Washington then moved his army to New York.[106]