heavy) artillery and counterattack reserves – for a planned advance of in total, i.e. up to the Green Line. Army was to control artillery initially, which would then be delegated to corps an hour after the third objective had been taken. There would then, "without any settled pause" and "either immediately or within a few hours" be a fourth phase: an extra , taking the attackers to Passchendaele Ridge itself at Broodseinde, with the left flank along Gravenstafel spur to Gravenstafel and Langemarck (the Red Line). Although the strength of the fourth advance was to be left to the discretion of divisional commanders, Gough, in the words of the Official Historian, "instead of confining his first day’s operation to a short fixed advance, was in favour of going as far as he could", and more than twice as deep than Rawlinson and Plumer had earlier recommended. All available heavy artillery was to be ready to lay a protective barrage in front of the fourth objective, where Gough expected that resistance by German reserves would be met. However, if little opposition was met, a further advance was to be made that same afternoon to Passchendaele Village itself (technically a fifth objective, although not specifically numbered as such), an objective which Gough more realistically hoped to attain on the third or fourth day. Haig did not interfere, and Gough would later tell the Official Historian that Haig had hoped to reach the Belgian coast within a matter of weeks. Brigadier-General "Tavish" Davidson, Director of Military Operations at GHQ, now (25 June) proposed that Gough make jumps of "not less than and not more than ", while also recommending jumps of only about a mile (). This would enable greater concentration of artillery fire, while attacking troops would be less disorganised and less vulnerable to counterattack, as well as being better able to maintain their morale and to be relieved by fresh troops, ready for an advance to the Red Line three days later. Although Davidson later wrote that Haig had seen and approved his memorandum, Haig's diary makes no mention of it. Gough's response to the memorandum declared himself "in agreement" with the "broad principles" of "a continuous succession of organised attacks" but criticised Davidson's suggestion that major attack could be mounted every three days, Gough thinking ten days a more realistic interval. Gough and Maxse (who wrote "BALLS!" on his copy