AMIENS, BATTLE OF (1918). This is the name for the offensive of the British 4th and French 1st Army under Sir Doug las Haig's orders, an offensive which, launched by surprise on Aug. 8, 1918, and coming close after the Allied counterstroke on the Marne (see WORLD WAR and MARNE, SECOND BATTLE OF THE), inaugurated the unbroken tide of advance which culminated in the Armistice, on Nov. 11, 1918. After the German spring offen sive had been finally stopped in front of Amiens, this sector had an interval of comparative quiet, except for frequent small raids by the Australians holding it, while the struggle developed on other parts of the front.
Towards the end of June, the 4th Army commander, Gen. Raw linson, decided that an operation on rather a larger scale than the Australians had so far carried out had every chance of meeting with success. On July 4, six Australian battalions, working in close co-operation with some 6o tanks, together with four companies of the American 33rd division, which was attached to the 4th Army for training, attacked on a front of nearly three and a-half miles, and with consummate ease and only small losses captured the ridge running from Villers-Bretonneux down to the Somme at Hamel. This operation gave greater depth and valuable positions for observation to the British line, while at the same time it de nied to the enemy important observation over much of the Somme valley. It also showed that the German infantry was no longer the determined foe that it had been in 1916 and 1917, and that the enemy's defences were not formidable. The real significance of the operation was its evidence that on the 4th Army front a well organized attack, supported by tanks well trained beforehand to co-operate with infantry, would have every prospect of breaking through the enemy's defences, given the element of surprise. On July 17 Rawlinson submitted proposals to Haig for an at tack by the 4th Army on a front of approximately 16m. from Moreuil to Morlancourt. The plan was at once approved by Haig, who, in response to a request from Gen. Foch that the British should take the offensive on the Lys front with a view to recover ing the important position on Kemmel hill, recommended that the venue for the British offensive should be changed to the Amiens front. To this proposal Foch assented with the modification that the French ist Army (Debeney) should attack on the southern portion of the front between Moreuil and the River Luce (about three and a half miles) shoulder to shoulder with the British 4th Army, both armies operating under the direct orders of the Brit ish commander-in-chief.
On July 28 Foch issued his orders. "The object of the opera tion," he said, "is to disengage Amiens and the Amiens-Paris rail way, as well as to beat and push back the enemy between the Somme and the Avre. The offensive, covered on the north by the Somme, is to push forward as far as possible in the direction of Roye." The Amiens–Roye road was fixed as the dividing line be tween French and British, and Aug. i o was to be the day of at tack. This date was subsequently advanced to Aug. 8.
On Aug. 1 the strength of the 4th Army was seven divisions, one cavalry division, three tank battalions (about iio tanks), squadrons R.A.F. and i,000 guns and howitzers. By zero hour on Aug. 8, this force had been increased to 13 divisions, three cavalry divisions, 12 tank battalions (about 456 tanks), 17 squadrons R.A.F., and over 2,000 guns and howitzers, of which 672 were "heavies." In addition, one division, retained in the hands of the commander-in-chief, was brought into the area, while two others arrived on the day of the battle. The cavalry, about 96 whippet tanks, and part of the artillery were moved by road, the remainder being brought up in some 290 special trains, 23o for personnel and guns and 6o for ammunition and materiel.
As the Canadian Corps, at the time in reserve near Arras, had not been involved in the desperate fighting earlier in the year, it was realized that wherever it was identified in the line by the enemy an early offensive would certainly be expected. The first problem, therefore, was to camouflage its move and to keep its presence secret up to the last possible moment. With this object a few Canadian units were moved into the line near Kemmel, whilst the remainder moved down to the Amiens front, though it was not allowed to take over its part of the front line until just before zero hour on Aug. 8. The task also of introducing and reg istering a very large number of guns without detection was no easy matter. All movements of artillery units and the formation of ammunition dumps had to be done at -night. A strictly limited number of guns only were allowed to fire daily, nothing above the normal number of rounds being permitted.
The hostile forces believed to be available to oppose the British were six divisions in first line with eight in reserve of the German end Army (Marwitz), while in front of the attacking corps of the French 1st Army were the two left divisions of the German 2nd Army and one division of the German 18th Army (Hutier) . By the morning of Aug. 8 all preparations for the battle were complete, and the Allied forces, all unsuspected by the enemy, were about to enter upon the first stage of their march to the Rhine.
The Canadian 1st Division in the centre reached the first ob jective by 6.2o A.M. ; but the Canadian 2nd Division on its left only attained it an hour and a half later, having met with strong opposition at Marcelcave. At 8.2o A.M. the advance was resumed, the German machine-gunners putting up considerable resistance against the Canadian 2nd Division. The 1st Cavalry Division now sent forward two brigades, one of which passed through the Ca nadian 2nd Division and drove far into hostile territory, attaining the final objective in conjunction with the infantry, which followed up, clearing the ground in rear of the cavalry. By the end of the day's fighting the Canadian Corps had, with the exception already noted on the extreme right, carried out its appointed task, and captured over 5,00o prisoners and 161 guns.
North of the Somme the 3rd Corps had not met with the same measure of success. The plan had been disarranged by a local German attack near Morlancourt on Aug. 6, which forced back a part of the Allied line some Soo yards. In addition the terrain was not so suitable for tank manoeuvres as south of the river. The attack opened with the 58th, i 8th and 12th Divisions from right to left. After the first objective had been gained,\the fur ther advance broke down against the resistance of the enemy holding the Chipilly spur, while further north the enemy counter attacked and drove back the advanced attacking troops. Never theless the 3rd Corps captured during the day nearly 2,40o prison ers and 4o guns.
The results of this most successful day's battle were the com plete defeat and rout of 11 German divisions, a gain of ground to an average depth of six to seven miles on a front of eight miles, the capture of over 16,000 prisoners, 373 guns, several thousand machine-guns and quantities of ammunition and stores. Most im portant of all, the battle destroyed the last hope of German vic tory. "It was," said Ludendorff, "the black day of the German army in the war . . . To continue would be a gamble. The war would have to be ended." The French Attack, Aug. 8.—At 4.2o A.M., simultaneous with the British assault, the French bombardment of the enemy's position on the commanding ground in the angle between the riv ers Avre and Luce opened, and at 5.05 A.M. the French infantry in this sector debouched to the attack. For this operation Deb eney allotted three divisions of the 3 I st Corps, of which one divi sion was given the task of capturing Moreuil. Despite a stubborn defence, the enemy was gradually driven back and Moreuil wood taken. This feature was of great importance, as its capture se cured the flank of the British advance. At 8.20 A.M. the next corps to the south, the 9th Corps, crossed the Avre, south of Moreuil, and extended the front of attack, which by the end of the day's fighting reached the general line Plessier–Fresnoy (excl.). Although the French attack did not quite reach its final objective for the day, its main task of securing the British flank was carried out, while some 3,00o prisoners and many guns were captured. The other two corps of the French 1st Army did not take an .offensive role until next day. The result also enabled Gen. Fayolle, com manding the French reserve group of armies, to carry out his plan of extending the battle front farther to the south on Aug. 9.
Early in the morning the Canadians captured the village of Le Quesnel, thus completing the capture of all the objectives al lotted to the main British attack for the 8th. During the day, assisted by cavalry, they advanced the line an average of five miles and halted for the night on a general line east of Rouvroy and Meharicourt. To the north the Australians reached Lihons hill and captured Framerville after stubborn fighting. The 3rd Corps, north of the Somme, cleared the Chipilly spur and occupied Mor lancourt. During the day six German divisions reinforced the front from neighbouring armies. On Aug. r o and 1 r the advance continued against ever-stiffening resistance and hostile counter attacks, eventually reaching the general line Le Quesnoy–Lihons Raincourt, whilst north of the river the Etinehem spur was com pletely cleared.
It was now clear that to push the offensive farther would lead to disproportionate loss with little corresponding gain. The enemy had reformed his front, shattered on the 8th, by fresh troops from other portions of the line, and had settled down on the edge of the area devastated in the Somme battles of 1916, where a maze of old trenches, wire and shell holes rendered defence easy and rapid advance impracticable. Rawlinson had engaged all his 13 divisions, units were tired and in need of a breathing-space. He therefore decided to allow his troops a few days' rest while preparing for a renewal of the attack on Aug. 15. Units in the line were relieved and tired infantry and cavalry withdrawn into reserve.