First Battle of the Marne information

First Battle of the Marne
	Part of the Western Front of World War I
	; German soldiers (wearing distinctive pickelhaube helmets with cloth covers) on the front line at the First Battle of the Marne.
Date	7–14 September 1914
Location	Marne River near Brasles, east of Paris, France49°1′N 3°23′E / 49.017°N 3.383°E
Result	Allied Victory
Belligerents
France; United Kingdom	Germany
Commanders and leaders
Joseph Joffre; Joseph Gallieni; Michel-Joseph Maunoury; Louis Franchet d'Espèrey; Ferdinand Foch; Fernand de Langle de Cary; Maurice Sarrail; John French	Helmuth von Moltke; Alexander von Kluck; Karl von Bülow; Max von Hausen; Albrecht von Württemberg; Crown Prince Wilhelm
Units involved
Franco-British Armies Sixth Army ; Fifth Army ; Ninth Army ; Fourth Army ; Third Army ; BEF ;	German Armies 1st Army ; 2nd Army ; 3rd Army ; 4th Army ; 5th Army ;
Strength
1,080,000; 64 French divisions; 6 British divisions	750,000–900,000; 51 German divisions
Casualties and losses
250,000 killed or wounded ; 12,733 killed or wounded	260,000 killed or wounded; 38,000 captured

The First Battle of the Marne was a battle of the First World War fought from 5 to 12 September 1914.^[4] The German army invaded France with a plan for winning the war in 40 days by occupying Paris and destroying the French and British armies (Allies/Entente). The Germans had initial successes in August. They were victorious in the Battles of Mons and the Frontiers and overran a large area of northern France and Belgium. In what is called the Great Retreat the Germans pursued the retreating Franco/British forces more than 250 km (160 mi) southward. The French and British halted their retreat in the Marne River valley while the Germans advanced to 40 km (25 mi) from Paris.

With the battlefield reverses of August, Field Marshal John French, commander of the British Expeditionary Force (BEF), lost faith in his French allies and began to plan for a British retreat to port cities on the English Channel for an evacuation to Britain. However, the French commander Joseph Joffre maintained good order in his retreating army and was able to reinforce it by bringing in additional manpower from his eastern flank and integrating military reserve units into the regular army. By early September, the Franco–British forces outnumbered the Germans who were exhausted after a month-long campaign, had outrun their supply lines, and were suffering shortages. On 3 September the military governor of Paris, Joseph Simon Gallieni, perceived that the German right flank was vulnerable and positioned his forces to attack.

On 4 September Joffre gave the order to launch a counteroffensive. The battle took place between Paris and Verdun, a west to east distance of 230 km (140 mi). The point of decision and the heaviest fighting was in the western one-half of that area. By 9 September, the success of the Franco–British counteroffensive left the German 1st and 2nd Armies at risk of encirclement, and they were ordered to retreat to the Aisne River. The retreating armies were pursued by the French and British. The German armies ceased their retreat after 65 km (40 mi) on a line north of the Aisne River, where they dug in on the heights and fought the First Battle of the Aisne. The German retreat from 9 to 12 September marked the end of the German attempt to defeat France quickly. Both sides next commenced reciprocal operations to envelop the northern flank of their opponent in what became known as the Race to the Sea which culminated in the First Battle of Ypres and led to a bloody four-year long stalemate of trench warfare on the Western Front of World War I.

The Battle of the Marne from September 5 to 12 resulted in an estimated 250,000 French casualties,^[2] 12,733 British casualties^[3] and 298,000 German casualties.^[2] Holger Herwig called the Battle of the Marne the most important land battle of the 20th century,^[5] while another analyst, John J. Tierney, Jr, argued it was the most important battle in history.^[6] The battle is described in French folklore as the "miracle on the Marne."

^ ^a ^b Herwig 2009, p. 244.
^ ^a ^b ^c ^d ^e Clodfelter 2017, p. 419.
^ ^a ^b Sumner 2010, p. 88.
^ "Battle of the Marne: 6–10 September 1914". BBC History. 2014. Retrieved 12 January 2018.
^ Herwig 2009, pp. xi, xii, 315–316.
^ Tierney Jr., John J. (20 October 2019). "The Most Important Battle in History - The Institute of World Politics". www.iwp.edu. Retrieved 1 March 2024.

[FOOTNOTEHerwig2009244-1] Herwig 2009, p. 244.

[FOOTNOTEClodfelter2017419-2] Clodfelter 2017, p. 419.

[FOOTNOTESumner201088-3] Sumner 2010, p. 88.

[4] "Battle of the Marne: 6–10 September 1914". BBC History. 2014. Retrieved 12 January 2018.

[FOOTNOTEHerwig2009xi,_xii,_315–316-5] Herwig 2009, pp. xi, xii, 315–316.

[6] Tierney Jr., John J. (20 October 2019). "The Most Important Battle in History - The Institute of World Politics". www.iwp.edu. Retrieved 1 March 2024.

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