abstract:In one disastrous week, dubbed Black Week, from 10-17 December 1899, the British Army suffered three devastating defeats by the Boer Republics at the battles of Stormberg (690), Magersfontein (948) and Colenso (1,138), with 2,776 men killed, wounded and captured. The events were an eye opener for the government and troops, who had thought that the war could be won very easily.