The 2nd battalion arrived in South Africa on 16th Dec 1899 and were intended for the 5th Division under Sir Charles Warren. But when the Division set sail for Natal to link up with Buller, the 2nd Warwicks and 1st Yorkshires remained at Cape Town. The Warwicks were ordered to the Britstown-De Aar district.
Lord Roberts arrived at Cape Town on 10th Jan and proceeded to the Modder River, arriving there a month later. He prepared his Great Advance, and the 18th Brigade were part of the force at his disposal. This Brigade consisted of 2nd Warwicks, 1st Yorkshire, 1st Welsh, 1st Essex and 3 batteries of Royal Field Artillery. However the Warwicks were required for the work of protecting lines of communication and did not take part in the battles of Paardeberg, Poplar Grove and Driefontein.
The Cape Colony
The situation in the west of Cape Colony deteriorated to the point where Kitchener was dispatched to organise a force to operate in the Britstown, Carnarvon and Prieska district. As well as the Warwicks, there were New Zealanders, Canadians, Yeomanry, militia and some CIVs. They managed to deal with the trouble and the Warwicks were able to join the main army in April 1900.
Diamond Hill, 11th-13th June 1900
Diamond hill was in the middle of a range of hills stretching several miles occupied by Louis Bothas' Boers. It was situated in the Transvaal between Pretoria and Middleburg. The 18th Brigade was present at this battle but no mention of casualties among the Warwicks is made.
Advance to Koomati Poort
When the advance to Prtoria was commenced the 11th Division under Pole-Carew was formed of the Guards Brigade and the 18th. In the advance towards Koomati Poort the Division was involved in various actions around the 24th to the 27th August at the north or right of the Boer positions, near Belfast. The Warwicks sustained around 20 casualties. After this the battalion was employed in the eastern Transvaal but was struck by fever and much depleted. They were sent with Boer prisoners to Bermuda before the war ended.
Ten officers and 16 NCOs and men were mentioned in Lord Roberts final despatch. Four officers were mentioned by Lord Kitchener. The 3rd and 4th Battalions of the Warwickshires provided Mounted Infantry companies which arrived in South Africa in 1901 and saw a great deal of fighting. Of these 7 NCOs and men of the 3rd, and one of the 4th gained mention in despatches as well as Lieutenant John Costeker. In Kitchener's final despatch 6 officers and 2 men of the Warwicks were mentioned.