6. Re-assembly.
As soon as the blue line has been reached, G.O.C. 5th Australian Division will arrange to release the 2nd Tank Battalion, less the attached company. This battalion will then be withdrawn. The remainder of the Tanks, less one company allotted to remain in support of each of the 4th and 5th Australian Divisions, will be withdrawn when ordered by Divisional Commanders, vide Battle Instructions No. 5, para. 4.
7. Smoke Grenades.
Divisions will ensure that a proportion of smoke rifle grenades accompanies each Infantry detachment detailed to the blue line and which accompanies each of the Mark V. (Star) Tanks.
Battle Instructions No. 6
ARTILLERY
1. Preparation.
Active counter-battery work and harassing fire will be maintained.
Such registration as is necessary will be carried out under cover of this fire. A detailed programme for this will be arranged in each divisional sector.
The necessity for concealing the increase in the number of guns on the front must be borne in mind, and on no account should a large number of guns be employed at any one time. Counter preparation and S.O.S. plans during the period of preparation for the attack will be drawn up accordingly.
Normal fire should, so far as possible, be carried out from positions other than those in which batteries will be emplaced during the battle.