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At about 2.30 pm parties of our men were seen withdrawing, about 1,000 yards left of VAULX, along high ground, left of BAPAUME-CAMBRAI ROAD. About 3 to 3.30 pm a message was received that 1/The
Buffs had fallen back towards VAULX.
The enemy was now well round the left flank, and was in VAULX, and was also getting round the right flank, advancing down valley from BOIS DE VAULX. We inflicted heavy casualties on him, but as we were unable to get Artillery on to him and the batteries were withdrawing, we were unable to stop him.
Under heavy enfilade fire from VAULX, which the enemy now held, the left flank resting on VAULX broke and retired, and the line fell back on to positions in front of the G.H.Q. Line. At dusk we received
orders to withdraw behind wire of G.H.Q. Line.
Some reasons were given for the success of the German breakthrough.
1. Failure to hold positions to last possible moment due to heavy percentage of casualties to Officers and NCO’s in Forward Areas.
2. When enemy opened bombardment, our Artillery put most of their barrage in NO MAN’S LAND and until 8 o’clock no enemy had advanced from his trenches, by which time our barrage had diminished
considerably.
3. The rifle grenade S.O.S. rocket in most cases failed to go off properly.
4. Lack of communication with Artillery in order to obtain local barrage. The enemy used white Very lights to indicate his position to his artillery, which replied effectively. He also fired
Red Lights when resistance was met with, and his Artillery concentrated in front of that area.
5. There was no communication between LEFT Battalion of the Division and the RIGHT Battalion of the Division on our left, although communication within the Division was sustained right through.
Points Observed.
1. Enemy’s first wave very thin. Lightly equipped and carrying M.G’s. Also pushed forward snipers. Second wave came on in mass. [This is the Storm Troop tactics J Dillon]
2. Enemy’s Field Artillery advanced with Third wave and were in action in NO MAN’S LAND before the Artillery had reached LAGNICOURT.
3. Enemy chiefly advanced along high ground in mass formation and through valleys in thin skirmishing lines, except down CORNHILL which was attacked in mass.
Suggestion - That in order to be able to put up a local barrage, Light Trench Mortars should be with Battalions (as Lewis Guns are) and that small dumps of L.T.M. Ammunition should be placed in places where a stand could be made, or counter attack launched.
This was signed on the 28 March by Lt. A.B. Rogers, 1/K.S.L.I.
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