Battle of Rosières 26–27 March

Day 6, 26 March

The Allied conference took place on 26 March at Doullens. Ten senior Allied politicians and generals were present, including the French President, British Prime Minister, Minister of Munitions Winston Churchill, and Generals Pétain, Foch, Haig and Wilson. The result of the meeting was that General Foch was first given command on the Western Front and then made Generalissimo of the Allied forces. It was agreed to hold the GermansThe German Empire, also referred to as Imperial Germany, the Second Reich, as well as simply Germany, was the period of the German Reich from the unification of Germany in 1871 until the November Revolution in 1918, when the German Reich changed its form of government from a monarchy to a republic. During its 47 years of existence, the German Empire became the industrial, technological, and scientific giant of Europe. Germans east of Amiens and an increasing number of French formations would reinforce the Fifth Army, eventually taking over large parts of the front south of Amiens.

Ludendorff issued new orders on 26 March. All three of his armies were given ambitious targets, including the capture of Amiens and an advance towards Compiègne and Montdidier, which fell on 27 March. Edmonds the Official Historian noted,

On 26 March, the general direction of the two northern German Armies of attack, the 2nd and 17th, was still due west; the 18th Army opened fanwise, its northern boundary some six miles [10 km], south of the Somme at Peronne, running west, but its southern one near Chauny, pointing south-west.' In the north the '17th Army...met with very determined resistance, but it was hoped, with the aid of the 2nd Army on the south, which had not encountered so much opposition, and of new attacks – "Mars" and "Valkyrie"...on the north [towards Arras] that the 17th would be able to get going again."

A gap in the British line near Colincamps was held by newly arrived elements of the New ZealandThe Dominion of New Zealand was the historical successor to the Colony of New Zealand. In 1841, New Zealand became a colony within the British Empire. Subsequently, a series of conflicts between the colonial government and Māori tribes resulted in the alienation and confiscation of large amounts of Māori land. New Zealand became a dominion in 1907; it gained full statutory independence in 1947, retaining the monarch as head of state.New Zealand Division that had moved to the line Hamel–Serre to close the gap. They were assisted by BritishThe British Empire, was composed of the dominions, colonies, protectorates, mandates, and other territories ruled or administered by the United Kingdom and its predecessor states. At its height it was the largest empire in history and, for over a century, was the foremost global power. By the start of the 20th century, Germany and the United States had begun to challenge Britain's economic lead. British "Whippet" tanks which were lighter and faster than the Mark IVs. This was their first time in action. At around 13:00, "twelve Whippets of the 3rd Tank Battalion suddenly appeared from Colincamps, which they had reached at midday, and where there were only two infantry posts of the 51st Div. Debouching from the northern end of the village, they produced an instantaneous effect. Some three hundred of the enemy, about to enter it from the east, fled in panic. A number of others, finding their retreat cut off, surrendered to some infantry of the 51st Divn…" Despite this success German pressure on Byng's southern flank and communication misunderstandings resulted in the premature retirement of units from Bray and the abandonment of the Somme crossings westwards. To the south of the Somme the 1/1st Herts were:

... moved forward through CHUIGNES to a line in front of the CHUIGNES-FOUCACOURT road I support to the 117th and 118th Bdes. After covering their retirement the Bn fought a series of rearguard actions on the many ridges in front of the village of CHUIGNOLLES. In the afternoon the Bn occupied the PROYART-FROISSY road. Orders were given for the Bn to withdraw behind PROYART, astride the FOUCACOURT-MANOTTE road.”26 March 1918.

FrenchFrench Third Republic was the system of government adopted in France from 4 September 1870, when the Second French Empire collapsed during the Franco-Prussian War, until 10 July 1940, after the Fall of France during World War II led to the formation of the Vichy government. During the 19th and 20th centuries, the French colonial empire was the second largest colonial empire in the world only behind the British Empire. French forces on the extreme right (south) of the line under the command of General Fayolle were defeated and fell back in the face of protracted fighting; serious gaps appeared between the retreating groups.

Of the front between the Oise and the Somme, the French held 18 miles [29 km] and the British 19 miles [31 km]. It was for the greater part a continuous line; but there was a three-mile [5 km] space between the French left at Roye and the right of the XIX Corps at Fransart... To fill the gap there were available the remains of the four divisions, the 20th, 36th, 30th and 61st, of the XVIII Corps. These General Maxse had instructed to assemble at and north-west of Roye, in order to keep connection between Robillot's Corps and the XIX Corps and to ensure that if the Allied Armies separated, the XVIII Corps might still remain with the Fifth Army."

Most of the 36th Division had arrived in their new lines around 02:00 on 26 March, and were able to sleep for about six hours, the longest continuous sleep they had in six days, as German troops occupied Roye. The 9th Irish Fusiliers were a long way behind the rest of the Division, delayed by their action north of Guiscard the night before and their retreat was a 50-kilometre (30 mi) continuous night march from Guiscard to Erches, along the Guerbigny–Bouchoir road. They route-marched through Bussy to Avricourt, then on to Tilloloy, Popincourt, Grivillers, Marquivillers and finally via Guerbigny to Erches, where they arrived, completely exhausted, around 11:00 on 26 March. The German troops who took Roye during the early hours of the morning, continued to advance on the Bouchoir–Guerbigny line and by mid-morning were in Andechy, 5.6 kilometres (3 1⁄2 mi) from the new British line.

Day 7, 27 March

The town of Albert was relinquished during the night of 26/27 March,

With the choice of holding the old position on the heights east of Albert, on the left bank of the Ancre, or the high ground west of the devastated town, it had been decided to adopt the latter course. The ruins of Albert were therefore abandoned to the enemy.

The town was then occupied by German troops who looted writing paper, wine and other items they found. 27 March saw a series of continuous complex actions and movements during the defensive battle of XIX Corps against incessant German attacks from the north, east and north-west around Rosières, less than 30 kilometres (20 mi) east of Amiens. This was a consequence of the precipitate abandonment of Bray and the winding line of the Somme river, with its important bridgeheads westwards towards Sailly-le-Sec, by the Third Army on the afternoon of 26 March. The important communications centre of Montdidier was lost by the French on 27 March.

The 1/1st Herts war diary reads,

The Bn who were in trenches on both sides of the road were ordered to move forward in support of the 118th Bde, being temporarily attached to the 4/5th Black Watch Regt. Soon after moving forward British troops were seen retiring to the left in large numbers. Consequently the Bn was ordered to move forward to the left and cover their withdrawal. After having skilfully carried this out the Bn conformed to the general withdrawal to a line between MORCOURT and the FOUCACOURT–LAMOTTE road. The Bn collected and assembled, then counter attacked the enemy, driving him back to within a few hundred yards of the village of MORCOURT.(27 March 1918).

RESOURCES
This article uses material from the Wikipedia articles "World War", "World War I", and "Operation Michael", which is released under the Creative Commons Attribution-Share-Alike License 3.0.