As it was, the French could never quite make up their minds—or rather the French parliamentarians could never make up their minds—upon the amount of money that might wisely be expended in the defence of this neutral border. There were moments when the opinion that Prussia would be restrained by no fear of Europe prevailed among the professional politicians of Paris. The fortification of the Belgian frontier was undertaken in such moments; a full plan of it was drawn up. But again doubt would succeed, the very large sums involved would appal some new ministry, and the effort would be interrupted. To such uncertainty of aim characteristic of parliamentary government in a military nation was added, unfortunately, the consideration of the line of the Meuse. Liége and Namur were fortresses of peculiar strength, Antwerp was thought the strongest thing in Europe; and that triangle was conceived, even by many who believed that the violation of Belgian territory would take place, as affording a sufficient barrier against the immediate invasion of France from the north-east. Those who made this calculation did not forget that fortresses are nothing without their full complement of men, guns, and stores; but they could neither control, nor had they the elements properly to appreciate, the deficiency of organization in a foreign and not military country.

For all these causes Maubeuge, in common with other points along the Belgian frontier less important than itself, was left imperfect. Even if the ring fortress had remained after 1905 what it had been before that date, and even if modern howitzer fire and modern high explosives had not rendered its tenure one of days rather than months, Maubeuge was not a first-class fortress. As it was, with fortifications unrenewed, and with the ring fortress in any case doomed, Maubeuge was a death-trap.

The rôle assigned to the fortress in the original French plan was no more than the support of the retiring operative corner, as it "retreated, manœuvred, and held the enemy." Maubeuge was considered as part of a line beyond which the operative corner would not have to fall before the rest of the square, the "manœuvring mass," had swung up. Hence it was that the French General Staff and its Chief had put within the ring of its insufficient forts nothing more than a garrison of Territorials—that is, of the older classes of the reserve.

Had the British General accepted the lure of Maubeuge as Bazaine did the lure of Metz in 1870, the Expeditionary Force would have been destroyed. But it would have been destroyed, not after a long delay, as was the army at Metz, but immediately; for Maubeuge was not Metz, and the fortress power of resistance of to-day is not that of a generation ago. Maubeuge, as a fact, fell within a fortnight of the date when this temptation was offered to the sorely pressed British army, and had that temptation been yielded to, the whole force would have been, in a military sense, annihilated before the middle of September.

What preserved it was the immediate decision undertaken upon that Monday night to proceed, in spite of the fatigues that were already felt after the first day's retreat, with a retirement upon the south-west, and to proceed with it as vigorously as possible.

It was not yet daylight upon the morning of Tuesday, August 25th, when the move began. The Field-Marshal counted justly upon some exhaustion in his immensely superior enemy, especially in those troops of his upon the west (the 2nd German Corps) which had to perform the heavy marching task of getting round the end of the British line. This element, combined with the considerable distance which the British marched that morning, saved the army; though not until another week of almost intolerable suffering had passed, and not until very heavy losses indeed had been sustained. The great Maubeuge-Bavai road, which is prolonged to Eth, and which was, roughly, the British front of that night, was cleared shortly after sunrise. A couple of brigades of cavalry and the divisional cavalry of the 2nd Corps covered the operation on the centre of the right, in front of the main body of the 2nd Corps, while the rest of the cavalry similarly covered the exposed western edge and corner of the line.

Delays, with the criticism of which this short summary has no concern, had forbidden the whole force which should have been present with the British Army in Flanders at the outset of the campaign to arrive in time, and the contingents that had already come up had taken the shock, as we have already described, in the absence of the 4th Division. This 4th Division had only begun to detrain from the junction at Le Cateau at the same hour that General Sir John French was reading that Sunday message which prompted his immediate retirement from before Mons. When the full official history of the war comes to be written, few things will prove of more credit to the Expeditionary Force and its command than the way in which this belated division—belated through no fault of the soldiers—was incorporated with the already existing organization, in the very midst of its retreat, and helped to support the army. There are few parallels in history to the successful accomplishment of so delicate and perilous an operation.

At any rate, in less than forty-eight hours after its arrival, the 4th Division—eleven battalions and a brigade of artillery—were incorporated with the British line just as the whole force was falling back upon this Tuesday morning, the 25th; and the newly arrived division of fresh men did singular service in the further covering of the retirement. General Snow, who was in command of this division, was deployed upon a line running from just south of Solesmes, on the right, to a point just south of La Chatrie, upon the road from Cambrai to Le Cateau, upon his left; and, as will be seen by the accompanying sketch map, such a line effectually protected the falling back of the rest of the force. Behind it the 1st and the 2nd British Corps fell back upon the line Cambrai to Landrecies. The small inset map shows how the various points in this two days' retreat stood to one another.

Sketch 55.