"What followed is worth mentioning in some little detail, since the Greys was the only Heavy Cavalry Regᵗ as yet landed in the Crimea, and a special job fell to their lot that day. The Regᵗ being the advanced guard of the Allied Forces moving straight to the North side of the fortress a singular and most important change of direction had to be made quite suddenly when the Russian outposts had been reached. "This movement is known as 'the flank march,' undertaken in consequence of the allied commanders' acceptance of a memorandum by Sir John Burgoyne, the distinguished officer of Engineers, pointing out that the South side of the fortress was practically undefended, and that if the Allied Forces could successfully move round, the North side might be left to itself. "Sir John Burgoyne's memorandum, dated the day after the battle of the Alma, is given in full in an instructive volume by Sir John Adye, entitled 'A Review of the Crimean War, published by Hurst & Blackett, 1860.' On arrival at the Belbec river the allied commanders adopted the plan proposed in the able memorandum alluded to. "In order to strike the main road which leads into the interior of the country down the Mackenzie heights towards Sebastopol and to the plains of Balaclava, the allies who, on the morning of the 25 September, were on the heights above the Belbec, had for some distance to march in a south-easterly direction through thick woods, in which there was only a slight track. On the same morning Prince Menschikoff, ignorant of the change, and doubtless conceiving that the plans of the allied generals were fully decided upon the attack on the _North_ side, was moving a force, a considerable force, by the same main road up the Mackenzie heights and into the country towards Bacskiverai, with the intention, probably, when his troops had somewhat regained their confidence, and when they had been joined by reinforcements, to return and attack the Anglo-French army in its rear. "Thus, on the 25th September the two hostile forces were unconsciously moving in two lines which intersected each other at a point close to the crest of the heights. Consequently, to the surprise of both, the advanced guard of the one suddenly found itself in the presence of the rearguard of the other. The Russian rearguard after standing for a moment dispersed into the wood, taking pot-shots at the Greys, who were forming up on the first available open space; as this could not be submitted to it became necessary, as there were no infantry present, to dismount a portion of the Regᵗ to skirmish in the wood against the irritating Russian Infantry, who, after firing at the horsemen, threw themselves down and pretended to be dead.