In his early youth he had shown in the Mutiny that he possessed the fighting energy of the soldier to a remarkable degree, but it was only in the Afghan War of 1880 that he had an opportunity of proving that he had rarer and more valuable gifts, the power of swift resolution and determined execution. At the crisis of the war he and his army disappeared entirely from the public ken only to emerge dramatically as victors at a point three hundred miles distant from where they had vanished.
It is not only as a soldier, but as a man, that Lord Roberts possesses some remarkable characteristics. He has in a supreme degree that magnetic quality which draws not merely the respect but the love of those who know him. In Chaucer's phrase, he is a very perfect gentle knight. Soldiers and regimental officers have for him a feeling of personal affection such as the unemotional British Army has never had for any leader in the course of our history. His chivalrous courtesy, his unerring tact, his kindly nature, his unselfish and untiring devotion to their interests have all endeared him to those rough loyal natures, who would follow him with as much confidence and devotion as the grognards of the Guard had in the case of the Great Emperor. There were some who feared that in Roberts's case, as in so many more, the donga and kopje of South Africa might form the grave and headstone of a military reputation, but far from this being so he consistently showed a wide sweep of strategy and a power of conceiving the effect of scattered movements over a great extent of country which have surprised his warmest admirers. In the second week of February his dispositions were ready, and there followed the swift series of blows which brought the Boers upon their knees. Of these we shall only describe here the exploits of the fine force of cavalry which, after a ride of a hundred miles, broke out of the heart of that reddish dustcloud and swept the Boer besiegers away from hard-pressed Kimberley.
In order to strike unexpectedly, Lord Roberts had not only made a strong demonstration at Koodoosdrift, at the other end of the Boer line, but he had withdrawn his main force some forty miles south, taking them down by rail to Belmont and Enslin with such secrecy that even commanding officers had no idea whither the troops were going. The cavalry which had come from French's command at Colesberg had already reached the rendezvous, travelling by road to Naauwpoort, and thence by train. This force consisted of the Carabineers, New South Wales Lancers, Inniskillings, composite regiment of Household Cavalry, 10th Hussars, with some mounted infantry and two batteries of Horse Artillery, making a force of nearly three thousand sabres. To this were added the 9th and 12th Lancers from Modder River, the 16th Lancers from India, the Scots Greys, which had been patrolling Orange River from the beginning of the war, Rimington's Scouts, and two brigades of mounted infantry under Colonels Ridley and Hannay. The force under this latter officer had a severe skirmish on its way to the rendezvous and lost fifty or sixty in killed, wounded, and missing. Five other batteries of Horse Artillery were added to the force, making seven in all, with a pontoon section of Royal Engineers. The total number of men was about five thousand. By the night of Sunday, February 11th, this formidable force had concentrated at Ramdam, twenty miles north-east of Belmont, and was ready to advance. At two in the morning of Monday, February 12th, the start was made, and the long sinuous line of night-riders moved off over the shadowy veld, the beat of twenty thousand hoofs, the clank of steel, and the rumble of gunwheels and tumbrils swelling into a deep low roar like the surge upon the shingle.
Two rivers, the Riet and the Modder, intervened between French and Kimberley. By daylight on the 12th the head of his force had reached Waterval Drift, which was found to be defended by a body of Boers with a gun. Leaving a small detachment to hold them, French passed his men over Dekiel's Drift, higher up the stream, and swept the enemy out of his position.