During the illness of Lord Salisbury in 1898, and again in Salisbury's absence abroad, Balfour was in charge of the Foreign Office, and he conducted negotiations with Russia on the question of railways in North China. As a member of the cabinet responsible for the Transvaal negotiations in 1899, he bore his share of controversy and, when the war began disastrously, he was first to realise the need to use the country's full military strength. His leadership of the House was marked by firmness in the suppression of obstruction, yet there was a slight revival of the criticisms of 1896.