December and January were mostly spent in training the men. Many of these knew nothing about mounted work, and had first to learn to stick on their horses (raw, untrained Argentines for the most part) somehow. However, in a creditably short time a body of useful mounted men, if not of expert horsemen, was turned out.

The 13th M. I. were first under fire at Hekpoort on 19th December, with General Alderson's column. Gen. Clements was then conducting a combined movement westwards up the Magaliesberg Valley. The Boers were eventually driven out of their Hekpoort position. The Company came under a smart rifle fire, and their led horses were pom-pomed: but they sustained no casualties and saw no Boers.

From January to April, 1901, Gen. Alderson's column was engaged on the operations under Gen. French in the eastern and south-eastern Transvaal. This column consisted of the 13th and 14th M. I., the Canadian Scouts, the Yorkshire Light Infantry, "J" Battery, R. H. A., and a pom-pom; it trekked along the Swaziland border to Ermelo, encountering very few Boers by the way. The column waited for supplies at Ermelo for ten days; but continuous rain and flooded rivers prevented the convoys coming out from Newcastle, and mutton and mealies were all that men and horses had to live on. The horses suffered severely from the lack of food, and from standing about in the wet camp. Full rations were not obtained till 26th March, more than a month later.

During April the column trekked through the difficult country between Vryheid and Zululand, arriving at Newcastle on the 20th of that month.

By this time more than half the 13th M. I. were dismounted, and the men were in rags. Gen. French's operations had cost the Boers 1,000 casualties, and the districts involved had been cleared, cattle being driven in, and sheep used for rations or destroyed. The Boer families were brought in to Refugee camps.

The 13th and 14th M. I. were remounted, and joined Gen. Bullock's column at Volksrust. The horses supplied to the Company were mostly large raw Hungarians, quite unsuited to the work.

Gen. Bullock's column, which was a large one, first trekked about the Standerton and Wakkerstroom districts, and then worked in the northern Free State, finishing up at Heidelberg in the end of July. There was no serious fighting, although every day Boer skirmishers were encountered. These would lie in wait for the scouts of the column, on the chance of shooting them at short range, and then making off. Dogs proved very useful to scouting parties: going on ahead, they would, by their actions, give warning of concealed Boers.

The men kept wonderfully fit and in very good spirits; they were just the type that Kipling describes in his poem "M. I." The horses, however, suffered severely from the cold, which was very severe, particularly at night.

At Heidelberg, Brig. Gen. Spens took over the column, which worked from July to September in the N. E. Free State. This was a very eventful time for the 13th M. I.; night marches were the rule rather than the exception. Numbers of Boers were captured, wagons, cattle and horses were brought in, and farms were destroyed. The column worked sometimes by itself, and sometimes in conjunction with others; occasionally single battalions went in different directions. The Boers had difficulty in avoiding the troops, and were deprived of their wagons, spare horses, shelters and means of subsistence, with a view to forcing them to surrender.

One occasion in particular may be mentioned. On the night of the 6th of August the column divided into two, acting in conjunction with Rimington. After a night march, a laager was surprised at dawn, many prisoners being taken.