[Illustration:  Sketch 55.]

This line from Landrecies towards Cambrai had already been in part prepared in the course of that day—­Tuesday—­and entrenched, and it may be imagined what inclination affected commanders and men towards a halt upon that position.  The pressure had been continuous and heavy, the work of detraining and setting in line the newly arrived division had added to the anxieties of the day, and an occupation of the prepared line seemed to impose itself.  Luckily, the unwisdom of such a stand in the retirement was perceived in time, and the British Commander decided not to give his forces rest until some considerable natural object superior to imperfect and hurriedly constructed trenches could be depended upon to check the enemy’s advance.  The threat of being outflanked was still very grave, and the few hours’ halt which would have been involved in the alternative decision might, or rather would, have been fatal.

The consequences, however, to the men of this decision in favour of continual retirement were severe.  The 1st Corps did not reach Landrecies till ten o’clock at night.  They had been upon the move for eighteen hours; but even so, the enemy, in that avalanche of advance (which was possible to him, as we now know, by the organization of mechanical transport), was well in touch.  The Guards in Landrecies itself (the 4th Brigade) were attacked by the advance body of the 9th German Army Corps, which came on in overwhelming numbers right into the buildings of the town, debouching from the wood to the north under cover of the darkness.  Their effort was unsuccessful.  They did not succeed in piercing or even in decisively confusing the British line at this point; and, packed in the rather narrow street of Landrecies, the enemy suffered losses equivalent to a battalion in that desperate night fighting.  But though the enemy here failed to achieve his purpose, his action compelled the continued retreat of men who were almost at the limit of exhaustion, and who had now been marching and fighting for the better part of twenty-four hours.

In that same darkness the 1st Division, under Sir Douglas Haig, was heavily engaged south-east of Maroilles.  They obtained ultimately the aid of two French reserve divisions which lay upon the right of the British line, and extricated themselves from the peril they were in before dawn.  By daylight this 1st Corps was still continuing its retirement in the direction of Wassigny, with Guise as its objective.

[Illustration:  Sketch 56.]

Meanwhile the 2nd Corps, which had not been so heavily attacked, and which lay to the west—­that is, still upon the extreme of the line—­had come, before the sunset of that Tuesday, the 25th, into a line stretching from Le Cateau to near Caudry, and thence prolonged by the 4th Division towards Seranvillers.

[Illustration:  Sketch 57.]