When was the 1st Earl of Ypres born who attacked attacked the Boer force from the rear while mounted infantry?
Battle of Poplar Grove:  General Sir John French's cavalry attacked the Boer force from the rear while mounted infantry and horse artillery attacked from the right flank. John French, 1st Earl of Ypres: Field Marshal John Denton Pinkstone French, 1st Earl of Ypres (28 September 1852 – 22 May 1925), known as Sir John French from 1901 to 1916, and as The Viscount French between 1916 and 1922, was a senior British Army officer.
28 September 1852