 Complete the following phrase:  When an army corps of three divisions was mobilised and despatched to South Africa at the outbreak of the Boer War, Lt-Gen Lord Methuen was given command of 1st Division of two infantry brigades, 1st Guards under Maj-Gen Sir Henry Colville and 2nd under Maj-Gen Henry Hildyard, with 4th Brigade Division three batteries of the Royal Field Artillery RFA under Col C.J. Long. The British commander, Sir Redvers Buller, had intended to march with the whole army corps across the Orange River to Bloemfontein, capital of the Orange Free State, but by the time the troops reached Cape Town the Boers had seized the Orange River crossings and begun sieges of 