“The expected fine weather of October did not come. On the contrary, the month provided a record in wet, spells of drenching rain being varied by dull, misty days, so that the sodden land had no chance of drying. The carrying of the lower spurs—meant as a preliminary step to a general attack—proved an operation so full of difficulties that it occupied all our efforts during the month, and with it all was not completed. The story of these weeks is one of minor operations, local actions with strictly limited objectives undertaken by only a few battalions. In the face of every conceivable difficulty we moved gradually up the intervening slopes.”

Such was the setting of this batch of experimental actions. The first of them took place on September 25, when two small parties of Tanks were employed in two distinct actions; the first with the 3rd Corps, and the second on September 25 and 26 with the 15th Corps near Gueudecourt.

The first was a failure. Only two Tanks had been allotted; one was ditched on the way to the starting-point, and the other machine was caught in the enemy barrage and knocked out.

Very different is the story of the Tanks operating with the 15th Corps at Gird Trench near Gueudecourt, when with the help of a low-flying aeroplane 1500 yards of trench and 370 prisoners were taken by one Tank at a cost to us of five casualties.

The story is told in the Somme Despatch:

“In the early morning a Tank started down the portion of the trench held by the enemy from the north-west, firing its machine-guns and followed by bombers. The enemy could not escape, as we held the trench at its southern end. At the same time an aeroplane flew down the length of the trench, also firing a machine-gun at the enemy holding it. These then waved white handkerchiefs in token of surrender, and when this was reported by the aeroplane the infantry accepted the surrender of the garrison. By 8.30 a.m. the whole trench had been cleared, great numbers of the enemy had been killed, and eight officers and 362 other ranks made prisoners. Our total casualties amounted to five.”

At noon on September 26 an attack was launched by General Gough’s reserve army on Thiepval. Eight Tanks co-operated.

It was the second attack that we had made on Thiepval, of which the Germans had made a most formidable fortress. The ground had been blasted into the familiar alternation of crumbling mounds and water-logged holes, and the shattered houses and splintered trees—particularly a certain row of apple trees—stood up forlornly amid the general desolation.

From the point of view of the Tanks, however, the action was important, because here for the first time Tanks were employed in a surprise attack.

No artillery preparation was used, and