Question: Which battle, occurring 100 days after the Second Battle of the Marne, went into effect on November 11, 1918 and marked the victory for the Allies?
Context: Major General Ulysses Grant McAlexander (30 August 1864 – 18 September 1936) was an American officer who served in the United States Army.  He was heavily decorated for valor, and is one of the iconic fighting men of the American Expeditionary Force during World War I.  He is most famous for commanding the 38th Infantry Regiment during the Second Battle of the Marne, and earning himself and the regiment the moniker, "Rock of the Marne" (later adopted by the entire 3rd Infantry Division). The Armistice of 11 November 1918 was an armistice during the First World War between the Allies and Germany – also known as the Armistice of Compiègne after the location in which it was signed – and the agreement that ended the fighting on the Western Front.  It went into effect at 11 a.m. Paris time on 11 November 1918 ("the eleventh hour of the eleventh day of the eleventh month"), and marked a victory for the Allies and a complete defeat for Germany, although not formally a surrender.  The Germans were responding to the policies proposed by U.S. President Woodrow Wilson in his Fourteen Points of January 1918.  The actual terms, largely written by French Marshal and Supreme Commander of the Allied Armies Ferdinand Foch, included the cessation of hostilities, the withdrawal of German troops to behind their own borders, the preservation of infrastructure, the exchange of prisoners, a promise of reparations, the disposition of German warships and submarines, and conditions for prolonging or terminating the armistice.  Although the armistice ended the actual fighting, it took six months of negotiations at the Paris Peace Conference to conclude the peace treaty, the Treaty of Versailles. The Battle of Château-Thierry was fought on July 18, 1918 and was one of the first actions of the American Expeditionary Forces (AEF) under General John J. "Black Jack" Pershing.  It was a battle in World War I as part of the Second Battle of the Marne, initially prompted by a German offensive launched on 15 July against the AEF, an expeditionary force consisting of troops from both the Army and Marine Corps, and the newest troops on the front. Henri Mathias Berthelot (1861–1931) was a French general during World War I.  He held an important staff position under Joseph Joffre, the French commander-in-chief, at the First Battle of the Marne, before later commanding a corps in the front line.  In 1917 he helped to rebuild the Romanian Army following her disastrous defeat the previous autumn, then in summer 1918 he commanded French Fifth Army at the Second Battle of the Marne, with some British and Italian troops under his command.  In the final days of the war he again returned to Romania, and then briefly commanded French intervention forces in southern Russia in the Russian Civil War. The Battle of the Marne (French: Première bataille de la Marne , also known as the Miracle of the Marne, "Le Miracle de la Marne") was a World War I battle fought from 6–10 September 1914.  It resulted in an Allied victory against the German armies in the west.  The battle was the culmination of the German advance into France and pursuit of the Allied armies which followed the Battle of the Frontiers in August and had reached the eastern outskirts of Paris.  A counter-attack by six French armies and the British Expeditionary Force (BEF) along the Marne River forced the Imperial German Army to retreat north-west, leading to the First Battle of the Aisne and the Race to the Sea.  The battle was a victory for the Allies but led to four years of trench warfare stalemate on the Western Front. Battle of Albert (21–23 August 1918) was the third battle by that name fought during World War I, following the First Battle of Albert and the Second Battle of Albert, with each of the series of three being fought roughly two years apart.  This smaller third battle was significant in that it was the opening push that would lead to the Second Battle of the Somme and involved the Australian Corps.  This attack opened the advance, with the main attack being launched by the Third Army along with support from the Fourth Army.  The Second Battle of Bapaume, from 25 August to 3 September, was a continuation of this battle. "Rouge Bouquet" or "The Wood Called Rouge Bouquet" is a lyric poem written in 1918 by American poet, essayist, critic and soldier Joyce Kilmer (1886-1918).  The poem commemorates during an intense German artillery bombardment of an American trench position in the Rouge Bouquet wood near the French village of Baccarat on 7 March 1918 that resulted in the loss of 19 American soldiers with the 165th Infantry Division.  Kilmer was a sergeant in the New York National Guard's "The Fighting 69th Regiment" which was part of the 165th Infantry Regiment involved in the attack.  Kilmer composed the poem immediately after the bombardment, and it was first read over their graves in March 1918.  The poem was first published two weeks after Kilmer's death in battle on 30 July 1918 during the Second Battle of the Marne in the 16 August 1918 issue of "Stars and Stripes".  The poem was read over Kilmer's own grave when he was interred in France.  To this day, it is a tradition of the Fighting 69th to read the poem at memorial services for fallen members of the regiment. The Marne Medal (French - "médaille de la Marne") was a French medal awarded to soldiers who had fought in the First Battle of the Marne, the Second Battle of the Marne or both engagements, particularly those who took part in fighting between 6 and 12 September 1914 on the Senlis front at Verdun. The Second Battle of Bapaume was a battle of the First World War that took place at Bapaume in France, from 21 August 1918 to 3 September 1918.  It was a continuation of the Battle of Albert and is also referred to as the second phase of that battle.  The British and Dominion attack was part of what was later known as the Allies' Hundred Days Offensive. The Second Battle of the Marne (French: "Seconde Bataille de la Marne" ), or "Battle of Reims" (15 July – 6 August 1918) was the last major German offensive on the Western Front during the First World War.  The attack failed when an Allied counterattack by French and American forces, including several hundred tanks, overwhelmed the Germans on their right flank, inflicting severe casualties.  The German defeat marked the start of the relentless Allied advance which culminated in the Armistice with Germany about 100 days later.
Answer: Armistice of 11 November 1918