Race to the Sea
The Race to the Sea (French: Course à la mer; German: Wettlauf zum Meer, Dutch: Race naar de Zee) took place from about 17 September – 19 October 1914 during the First World War, after the Battle of the Frontiers (7 August – 13 September) and the German advance into France. The invasion had been stopped at the First Battle of the Marne (5–12 September) and was followed by the First Battle of the Aisne (13–28 September), a Franco-British counter-offensive.[a] The term describes reciprocal attempts by the Franco-British and German armies to envelop the northern flank of the opposing army through the provinces of Picardy, Artois and Flanders, rather than an attempt to advance northwards to the sea. The "race" ended on the North Sea coast of Belgium around 19 October, when the last open area from Diksmuide to the North Sea was occupied by Belgian troops who had retreated after the Siege of Antwerp (28 September – 10 October). The outflanking attempts had resulted in a number of encounter battles but neither side was able to gain a decisive victory.[b]
This article is about World War I. For the American Civil War campaign, see Sherman's March to the Sea.
After the opposing forces had reached the North Sea, both tried to conduct offensives leading to the mutually costly and indecisive Battle of the Yser from 16 October to 2 November and the First Battle of Ypres from 19 October to 22 November. After mid-November, local operations were carried out by both sides and preparations were made to take the offensive in the spring of 1915. Erich von Falkenhayn, Chief of the German General Staff (Oberste Heeresleitung OHL) since 14 September, concluded that a decisive victory could not be achieved on the Western Front and that it was equally unlikely in the east. Falkenhayn abandoned Vernichtungsstrategie (strategy of annihilation) and attempted to create the conditions for peace with one of Germany's enemies, by Ermattungsstrategie (strategy of exhaustion), to enable Germany to concentrate its resources decisively to defeat the remaining opponents.
Over the winter lull, the French army established the theoretical basis of offensive trench warfare, originating many of the methods which became standard for the rest of the war. Infiltration tactics, in which dispersed formations of infantry were followed by nettoyeurs de tranchée (trench cleaners), to capture by-passed strong points were promulgated. Artillery observation from aircraft and creeping barrages, were first used systematically in the Second Battle of Artois from 9 May to 18 June 1915. Falkenhayn issued memoranda on 7 and 25 January 1915, to govern defensive battle on the Western Front, in which the existing front line was to be fortified and to be held indefinitely with small numbers of troops, to enable more divisions to be sent to the Eastern Front. New defences were to be built behind the front line to contain a breakthrough until the position was restored by counter-attacks. The Westheer began the huge task of building field fortifications, which were not complete until the autumn of 1915.
Prelude[edit]
German plan[edit]
After the defeat on the Marne, Moltke ordered a retirement to the Aisne by the 1st and 2nd armies on the German right wing and a withdrawal to Reims and a line eastwards past the north of Verdun, by the 3rd, 4th and 5th armies. The 6th and 7th armies were ordered to end their attacks and dig in.[43] The withdrawal was intended to make time for the 7th Army to be transferred from Alsace to the right-wing near the Oise but Franco-British attacks led to the 7th Army being sent to fill the gap between the 1st and 2nd armies instead. Moltke was replaced by Falkenhayn on 14 September, by when the 1st Army had reached the Aisne, with its right flank on the Oise and the 7th Army had assembled on the Aisne, between the 1st and 2nd armies. Further east the 3rd, 4th and 5th armies had dug in from Prosnes to Verdun, secure from frontal attacks. The 1st Army was still vulnerable on its northern flank, to attacks by French troops transferred from the south, which could be moved faster over undamaged railways, than German troops using lines damaged during the Great Retreat.[23] General Wilhelm Groener, head of the Railway Department of the OHL, suggested three alternatives, a frontal attack from the new positions, a defence of the line of the Aisne while reserves were transferred to the right flank or to continue the withdrawal and comprehensively regroup the German armies, ready to conduct an offensive on the right flank.[44]
On 15 September, Falkenhayn wanted to continue the withdrawal and ordered the 1st Army to fall back and dig in from Artems to La Fère and Nouvion-et-Catillon, to protect the right flank from a French offensive, while the 6th Army moved from Lorraine to the western flank, ready for a general offensive to begin progressively on 18 September from the 5th Army in the east, pinning French troops down westwards, until the 6th Army enveloped the French, beyond the right of the 1st Army. The plan was cancelled soon afterwards, when Oberst (Colonel) Gerhard Tappen (OHL Operations Branch), reported from a tour of inspection at the front that the French were too exhausted to begin an offensive, that a final push would be decisive and that more withdrawals would compromise the morale of the German troops, after the defeat on the Marne.[44] From 15–19 September Falkenhayn ordered the 1st, 2nd and 7th armies, temporarily under the command of General Karl von Bülow, to attack southwards and the 3rd, 4th and 5th armies to attack with the intention of weakening the French and preventing troops from being moved westwards. The 6th Army began to move to the western flank on 17 September, ready for a decisive battle (Schlachtentscheidung) but French attacks on 18 September, led Falkenhayn to order the 6th Army to operate defensively to secure the German flank.[7]
French plan of attack[edit]
French attempts to advance after the German retirement to the Aisne were frustrated after 14 September, when German troops were discovered to have stopped their retirement and dug in on the north bank of the Aisne. Joffre ordered attacks on the German 1st and 2nd armies but attempts by the Fifth, Ninth and Sixth armies to advance from 15–16 September, had little success. The Deuxième Bureau (French Military Intelligence) also reported German troop movements from east to west, which led Joffre to continue the transfer of French troops from the east, which had begun on 2 September with the IV Corps and continued on 9 September with the XX Corps, 11 September with the XIII Corps and the XIV Corps on 18 September. The depletion of the French forces in the east, took place just before the Battle of Flirey, a German attack on 20 September against the Third Army on either side of Verdun, the Fifth Army north of Reims and the Sixth Army along the Aisne, which ended with the creation of the St. Mihiel Salient. Joffre maintained the French emphasis on the western flank, after receiving intercepted wireless messages, showing that the Germans were moving an army to the western flank and continued to assemble the Second Army to the north of the Sixth Army. On 24 September the Second Army was attacked and found difficulty in holding ground, rather than advancing around the German flank as intended.[45]