Officers commanding battalions will call for support, if necessary, from the battalions immediately in rear of them. If necessary, men will be left in each line captured to clear it of the enemy, but troops will not be detailed to remain behind in objectives for purposes of consolidation, except that the 2nd and 3rd Battalions Coldstream Guards will remain in the third objective ready to support the troops attacking the fourth objective. The task of the Brigade is to press the attack through to their ultimate objectives with every means at our disposal. 12. Tanks will be employed to co-operate with the attack. Instructions as to their employment are attached. Instructions will be issued as to movement of tanks to their departure positions, and as to time of their advance to the various objectives. 13. _Royal Flying Corps_―― (_a_) 9th Squadron, Royal Flying Corps will have one Contact aeroplane in the air from zero to dark on Z day, and again from 6.30 A.M. to 9 A.M. on Z + 1 days. (_b_) Flares will be lit as follows: (1) On obtaining each objective. (2) At 12 noon and 5 P.M. on Z day by leading troops. (3) At 6.30 A.M. on Z + 1 day by leading troops. Red flares will be used by infantry, Green flares by Cavalry. 14. An orderly with a watch will visit all Battalion H.Q. about 1 P.M. and 7 P.M. on Y day, so that time may be checked. 15. Special instructions will be issued on the following subjects: (_a_) Medical arrangement. (_b_) Supply of rations, water, S.A.A., Light T.M. ammunition and hand grenades. (_c_) Communications. 16. All transport will be packed up and ready to move forward at one hour’s notice after zero + 4 hours. The Brigade Transport officer will remain at Divisional Headquarters, Minden Post, from zero + 2 hours onwards. On Y day after 7.30 P.M. the road running north from cross-roads S.28.d.4.2 will be clear of all wheeled traffic. 17. As soon as the final objectives have been captured by the infantry the cavalry will advance and seize the high ground Rocquigny――Villers-au-Flos――Riencourt-les-Bapaume――Bapaume. The Fourteenth Corps will be prepared to support the cavalry on the above line at the earliest possible moment. 18. Prisoners will be sent _via_ Brigade Headquarters to Divisional Collecting Station at Crater Post A.8.a.6.3, where they will be taken over and searched under A.P.M. arrangements. Receipts will be given for prisoners and escorts will return to their units. All captured documents should be sent with prisoners to Divisional Collecting Station, whence they will be forwarded under Divisional arrangements.