It was on his way to Kimberley from Cape Town viâ Port Elizabeth on this land claim business in Griqualand that he had the late Mr. Cecil Rhodes as his travelling companion. As they were driving over the brown veldt from Dordrecht to Jamestown, Warren noticed that Mr. Rhodes, who sat opposite to him, was evidently engaged in learning something by heart, and offered to hear him. It turned out to be the Thirty-nine Articles of the Church of England. In the diary of this journey, also published in ‘Good Words’ of 1900, Warren relates: ‘We got on very well until we arrived at the article on predestination, and there we stuck. He had his views and I had mine, and our fellow-passengers were greatly amused at the topic of our conversation—for several hours—being on one subject. Rhodes is going in for his degree at home, and works out here during the vacation.’

The Gaika War, 1878

In January 1878 Warren proceeded to the Gaika war in command of the Diamond Fields Horse, raised at Kimberley, and was engaged for six months in Kaffraria. He bought his mounts and drilled his men on the way, and infused his own indomitable energy into every member of his command. He took part in numerous engagements, among which may be mentioned the action of Perie Bush in March, when he was injured by the falling of the bough of a tree, and the action at Debe Nek on 5th April, where with seventy-five of the Diamond Fields Horse he met 1,200 armed Kafirs of Seyolo’s tribe in the open, and gained a complete victory. The Governor-in-Chief telegraphed his congratulations on this brilliant success. A few weeks later Warren had another successful fight at Tabi Ndoda on 29th April, when he was slightly wounded. He was frequently mentioned in despatches, and his conspicuous personal bravery, no less than his skill as a commander, was brought to the notice of the Secretary of State for War. The Governor-in-Chief especially commended him in his despatches for ‘energy, ability, and resource displayed under most trying circumstances.’ He had been promoted to be Major on 10th April 1878, and his services in the campaign were recognised by a brevet-lieutenant-colonelcy, dated 11th November 1878, and the South African medal.

Native Rebellion in Griqualand West and
Troubles with the Bechuanas, 1878–9

Early in May the whole native population of Griqualand West, west of the Vaal river, broke out in rebellion and, joining their former enemies, the Kaal Kafirs (refugees from Cape Colony), commenced depredations to the west of Griquatown. In consequence of this critical state of affairs in Griqualand West the Executive Government telegraphed for the assistance of Warren and the Diamond Fields Horse from the Cape Colony. The regiment left King William’s Town on 14th May and arrived at Griquatown on 10th June.

While Colonels Lanyon and Warren were fighting the rebels in the far west the Bechuanas made incursions over the northern border, murdering the white residents at Daniel’s Kuil and Cornforth Hill, wrecking the mission station at Moteto in Bechuanaland, and threatening the lives of the traders and missionaries in Kuruman itself. Lanyon and Warren fought several successful actions with the insurgent Griquas and Kaal Kafirs, particularly that at Paarde Kloof on 18th June. Lanyon then returned to Kimberley, leaving Warren in command of the Field Force with instructions to proceed to the northern border in case assistance were required there. Commandant Ford had been sent to the northern border for the express purpose of saving the Kuruman mission station, and on 2nd July met with a repulse at Koning (close to the border of Griqualand), but defeated the enemy at Manyering on 8th July, and the following day arrived at Kuruman. His force, however, was too small to do more than act on the defensive, and he asked for assistance. Warren arrived with the Field Force at Kuruman on 14th July, and Lanyon with a detachment of troops on the 16th. On the 18th Warren’s force attacked Gomaperi successfully, and on 23rd July carried Takoon by assault; and in August the force returned to Kimberley, leaving a garrison to protect Kuruman.

In consequence of the rebels joining with the Bechuanas it was found necessary to continue the war, for Kuruman and Griqualand were both threatened. Warren was again entrusted with the command of the Field Forces on 21st September, and signally defeated the combined forces of the Griquas, Bechuanas, and Old Colony Kafirs on 11th, 12th, and 14th October at Mokolokue’s Mountain. He then issued a proclamation, which exhibited both firmness and tact, and offered an amnesty to all but the ringleaders and murderers. This had a good effect.

Hostilities recommenced on the northern border (Cape Colony) in January 1879, and subsequently in Bechuanaland and the Keate Award, and the Griqualand West forces were ordered to co-operate with those of the Cape Colony. On 11th February Warren was appointed Acting Administrator of Griqualand West and disarmed all the natives. During this and the following month the whole country was disturbed in consequence of the disaster at Isandhlwana, and Warren offered to take 500 white troops to the assistance of Lord Chelmsford, but it was not considered desirable to take 500 white men away from Kimberley at so critical a time. As Special Commissioner Warren inquired into the land question of the Bloemhof districts, and in April commanded the Griqualand West Field Forces in the northern border of Cape Colony, and made arrangements to prevent the rebels breaking through again into Griqualand West. They were thus forced into Bechuanaland, and in conjunction with the Bechuanas again threatened Kuruman. The Bechuana and Griqua ringleaders and the Cape Colony rebels were defeated and captured by the Griqualand West forces in August, and Warren was able to reduce the strength of his columns in the field. He was invalided home in the autumn on account of the hurt he sustained from the falling tree. He left the Cape much to the regret of the South African people, among whom his name had become a household word, and his departure was regarded by them in the light of a personal loss. For his services during the past year he received a clasp to his South African medal and nothing more.

The Colonial Office made a strenuous but unsuccessful endeavour to procure for him a brevet-colonelcy, and made the following representation to the War Office in December 1879: