 Eventually 20 @,@ 000 volunteers were called up and fought in the war . However , Balfour 's need to liaise with the 2nd Duke of Westminster , who had just inherited the Grosvenor Estate , prevented him from joining his force when they travelled to South Africa at the end of 1899 . He remained in command of the London Scottish until 1900 , when he resigned in protest at financial controls that prevented payments to volunteers if there was an insufficient number of raised troops . 
