http://en.wikipedia.org/wiki/Robert_Erskine_ChildersThe "Cavalry Controversy"
Childers's neighbour, Leo Amery was editor of The Times's History of the War in South Africa, and having already persuaded Basil Williams to write volume four of the work, he used this to persuade Childers to prepare volume five. This profitable commission took up much of Childers's free time until publication in 1907. It drew attention to British political and military errors and made unfavourable contrast with the tactics of the Boer guerrillas.
Motivated by his expectation of war with Germany, Childers wrote two books on cavalry warfare, both strongly critical of what he saw as outmoded British tactics. All were agreed that cavalry should be trained to fight dismounted with firearms, but traditionalists wanted cavalry still to be trained as the arme blanche, charging with lance and sabre. War and the Arme Blanche (1910) carried a foreword from Field Marshal Roberts, and recommended that cavalry "make genuinely destructive assaults upon riflemen and guns" by firing from the saddle - Sheffield describes this tactic as "immensely difficult and generally unrewarding" and Childers' views as "bizarre".
German Influence on British Cavalry (1911) was Childers's "intolerant" rejoinder to criticisms of War and the Arme Blanche made by Prussian General, Friedrich von Bernhardi, writing in an unlikely alliance with British General French, who had commanded successful cavalry charges at Elandslaagte and Kimberley. Although the traditional view appears absurd with hindsight (see, for example) it was reestablished as Roberts retired and French and his protégé Major-General Haig rose to the top of the army.