Decisive Battle a Century Ago

The Battle of Amiens, also known as the Third Battle of Picardy (French: 3ème Bataille de Picardie), was the opening phase of the Allied offensive which began on 8 August 1918, later known as the Hundred Days Offensive, that ultimately led to the end of the First World War. Allied forces advanced over 11 kilometres (7 mi) on the first day, one of the greatest advances of the war, with Henry Rawlinson's British Fourth Army playing the decisive role. The battle is also notable for its effects on both sides' morale and the large number of surrendering German forces. This led Erich Ludendorff to describe the first day of the battle as "the black day of the German Army". Amiens was one of the first major battles involving armoured warfare and marked the end of trench warfare on the Western Front; fighting becoming mobile once again until the armistice was signed on 11 November 1918.

Prelude

On 21 March 1918, the German Army had launched Operation Michael, the first in a series of attacks planned to drive the Allies back along the length of the Western Front. With the signing of the Treaty of Brest-Litovsk with revolutionary-controlled Russia, the Germans were able to transfer hundreds of thousands of men to the Western Front, giving them a significant, if temporary, advantage in manpower and materiel. These offensives were intended to translate this advantage into victory. Operation Michael was intended to defeat the right wing of the British Expeditionary Force (BEF), but a lack of success before Arras ensured the ultimate failure of the offensive. A final effort was aimed at the town of Amiens, a vital railway junction, but the advance had been halted at Villers-Bretonneux by British and Australian troops on 4 April.^[6]

Subsequent German offensives—Operation Georgette (9–11 April), Operation Blücher-Yorck (27 May), Operation Gneisenau (9 June) and Operation Marne-Rheims (15–17 July)—all made advances elsewhere on the Western Front, but failed to achieve a decisive breakthrough.

By the end of the Marne-Rheims offensive, the German manpower advantage had been spent and their supplies and troops were exhausted. The Allied general, General Ferdinand Foch, ordered a counteroffensive which led to victory at the Second Battle of the Marne, following which he was promoted to Marshal of France. The Germans, recognising their untenable position, withdrew from the Marne to the north. Foch now tried to move the Allies back onto the offensive.

The Battle of Amiens

The battle began in dense fog at 4:20 am on 8 August 1918. Under Rawlinson's Fourth Army, the British III Corps attacked north of the Somme, the Australian Corps to the south of the river in the centre of Fourth Army's front, and the Canadian Corps to the south of the Australians. The French 1st Army under General Debeney opened its preliminary bombardment at the same time, and began its advance 45 minutes later, supported by a battalion of 72 Whippet tanks. Although German forces were on the alert, this was largely in anticipation of possible retaliation for their incursion on the sixth and not because they had learned of the preplanned Allied attack. Although the two forces were within 460 metres (500 yd) of one another, gas bombardment was very low, as the bulk of the Allied presence was unknown to the Germans. The attack was so unexpected that German forces only began to return fire after five minutes, and even then at the positions where the Allied forces had assembled at the start of the battle and had long since left.

In the first phase, seven divisions attacked: the British 18th (Eastern) and 58th (2/1st London), the Australian 2nd and 3rd, and the Canadian 1st, 2nd and 3rd Divisions. Parts of the American 33rd Division supported the British attackers north of the Somme.

The attackers captured the first German position, advancing about 3.7 km (4,000 yd; 2.3 mi) by about 7:30 am. In the centre, supporting units following the leading divisions attacked the second objective a further 3.2 km (2.0 mi) distant. Australian units reached their first objectives by 7:10 am, and by 8:20 am, the Australian 4th and 5th Divisions and the Canadian 4th Division passed through the initial breach in the German lines. The third phase of the attack was assigned to infantry-carrying Mark V* tanks; however, the infantry was able to carry out this final step unaided. The Allies penetrated well to the rear of the German defences and cavalry now continued the advance, one brigade in the Australian sector and two cavalry divisions in the Canadian sector. Aircraft fire by the new RAF and armoured car fire kept the retreating Germans from rallying.

The Canadian and Australian forces in the centre advanced quickly, pushing the line 4.8 km (3.0 mi) forward from its starting point by 11:00 am. The speed of their advance was such that a party of German officers and some divisional staff were captured while eating breakfast. A gap 24 km (15 mi) long was punched in the German line south of the Somme by the end of the day. There was less success north of the river, where the British III Corps had only a single tank battalion in support, the terrain was rougher and the German incursion of 6 August had disrupted some of the preparations. Although the attackers gained their first objectives, they were held up short of the Chipilly Spur, a steep wooded ridge.

The British Fourth Army took 13,000 prisoners, and the French captured a further 3,000. Total German losses were estimated to be 30,000 on 8 August. The British, Australian and Canadian infantry of the Fourth Army sustained about 8,000 casualties, with further losses by tank and air personnel, and French forces.

German Army Chief of Staff Paul von Hindenburg noted the Allies' use of surprise and that Allied destruction of German lines of communication had hampered potential German counter-attacks by isolating command positions. The German General Erich Ludendorff described the first day of Amiens as the "Schwarzer Tag des deutschen Heeres" ("the black day of the German Army"), not because of the ground lost to the advancing Allies, but because the morale of the German troops had sunk to the point where large numbers of troops began to capitulate. He recounted instances of retreating troops shouting "You're prolonging the war!" at officers who tried to rally them, and "Blackleg!" at reserves moving up. Five German divisions had effectively been engulfed. Allied forces had pushed, on average, 11 km (6.8 mi) into enemy territory by the end of the day. The Canadians gained 13 km (8.1 mi), Australians 11 km (6.8 mi), the French 8 km (5.0 mi), and the British 3.2 km (2.0 mi).

https://en.wikipedia.org/wiki/Battle_of_Amiens_(1918)