At the beginning of June, the garrison of Sevastopol officially numbered 53,000, including 9,000 naval gunners. On the Mackenzie Heights and in camp at the Belbec were a further 21,000 men and 100 field guns. The allies' Third Bombardment eventually got under way on 6 June and at dawn the following day the French advanced on the Mamelon, while the British assaulted the Quarries. 'It was', attempt to carry on to the Malakov. Despite the undoubted gains, that formidable fortification and the Great Redan still lay- ahead. And the French had to some extent been disrupted by a furious dispute between P?lissier and Bosquet, which led to Regnaud de St Jean d'Angely taking over Bosquet's corps on the eve of renewed assault on the Russian defences.
The Fourth Bombardment commenced on 17 June, with 600 allied guns firing along the line from the Quarantine Fort in the west to Point Battery in the east. The shells of 114 French and 166 British cannon fell on the Karabel suburb. After a pause overnight, this aerial onslaught was to recommence at 3 am on 18 June, with infantry attacks going in three hours later. Suddenly Plissier decided to attack at 3 am without preliminary artillery fire and Raglan had hastily to amend his orders. 'Nothing but confusion and mismanagement' thus prevailed among the allies, in the words of the Hon. Somerset Calthorpe, Raglan's ADC.
The enemy, not for the first time, pre-empted the allies. Then the trail from an enemy shell fuse was mistaken for the executive rocket, and General Mayran on
the French right launched his assault prematurely. In the centre and left, generals Brunet and d'Autemarre waited until the agreed signal, so this part of the allied attack went in piecemeal and predictably met fierce resistance. Seeing the French predicament, Raglan sent his men over 400yds (365m) of open ground against the Great Redan without further bombardment. His noble gesture predictably failed, even though a few French and British did temporarily reach the outskirts of Sevastopol. During this action, the British incurred 1,505 casualties, the French 3,500 and the Russians 5,500 (some later Russian accounts claim 3,950). The Malakov and Great Redan, though, remained in Russian hands.