The Cape Dutch and Kitchener 

Several hundred Cape rebels were captured, of whom 435 were condemned to death. This measure was meant to deter the Cape Afrikaners from joining the guerrilla commando's of the Boers, and to some extent, it was successful in achieving this objective.

However, in an effort to appease Cape Afrikaners, Kitchener commuted 391 sentences to jail time, and consequently, only 44 rebels were executed. As was the case during the first Boer invasion of the Cape Colony (October 1899–March 1900), the guerrilla invasions led to martial law being proclaimed in certain districts (December 1900), and extended to include the seaport towns in October 1901.

Another important factor was the media. Roberts fostered good relations with the correspondents who accompanied his army, unlike Kitchener, who did not get along well with reporters. Through his numerous official despatches, Kitchener informed his military and political masters in London about developments at the war front, and eventually, the relative success that he achieved in countering the Boer guerrillas swayed public opinion in favour of the continued British (counter-guerrilla) war effort in southern Africa, which eventually brought about a favourable outcome for the British Empire.

Source: Boer Guerrilla and British Counterguerrilla Operations