Following a series of minor victories, the British suffered a major setback during Black Week between 10 and 17 December 1899, although no Australian units were involved. The first contingents of infantry from Victoria, South Australia, Western Australia, and Tasmania arrived in Cape Town on 26 November and were designated the "Australian Regiment" under the command of Colonel John Charles Hoad. With a need for increased mobility, they were soon converted into mounted infantry. Further units from Queensland and New South Wales arrived in December and were soon committed to the front. The first casualties occurred soon after at Sunnyside on 1 January 1900, after 250 Queensland Mounted Infantry and a column of Canadians, British and artillery attacked a Boer laager at Belmont. Troopers David McLeod and Victor Jones were killed when their patrol clashed with the Boer forward sentries. Regardless, the Boers were surprised and during two hours of heavy fighting, more than 50 were killed and another 40 taken prisoner. Five hundred Queenslanders and the New South Wales Lancers subsequently took part in the Siege of Kimberley in February 1900.