9, a series of British losses prompted the nickname “Black Week” for the depth of damage and the loss inflicted by the Boers. The three disastrous battles for the British were “Gatacre’s mishap at Stromberg” on the 10th, “Methuen’s repulse at Fleming 04Magersfontein on the 11th and “Buller’s first reverse at Colenso” on the 15th as named by the British. During these battles they would end up losing almost three thousand troops and suffer the humiliation of the defeat of the mighty British armies by a loosely regimented group of farmers. One of the primary reasons for the Boers ability to repel the British in these early battles was the introduction of smokeless gunpowder and the repeating rifle that allowed the Boers to attack advancing troops while remaining hidden at a great distance. There was no smoke from the discharge of the weapon and the accuracy was infinitely better than that of the black powder rifles of just a few decades prior. These advantages, coupled with the Boers’ intimate knowledge of the South African terrain and the highly mobile, commando style of engaging the enemy, were to confound and frustrate the British army continuously throughout the conflict.The British were not able to gain an authoritative grasp of the situation until the early months of 1900. In January there was a tremendous influx and regrouping of British military and a change of leadership as Field Marshall Frederick Roberts replaced General George White, who was put in charge of the forces in Natal, and Horatio Herbert Kitchener became Roberts’ chief of staff. With their increasing numbers and better understanding of the tactics with which the Boers were succeeding, the British would begin a sweep northward that would not stop until they reached the capital of the South African Republic, Pretoria. The numbers of troops they eventually put into service in South Africa r...