Sanna's Post (Second Boer War).
Fought March 31, 1900, when a force of cavalry, with 2 R.H.A. batteries and a considerable convoy, under Colonel Broadwood, was ambushed by a party of Boers, under De Wet, while crossing a donga. The guns were just entering the donga when the Boers opened fire, and 4 guns of Q battery succeeded in getting clear and opening fire, stuck to their work till only 10 men of the battery were left standing. Broadwood succeeded in extricating his force, but at a cost of 19 officers and 136 men killed and wounded, 426 prisoners, 7 guns, and the whole of his convoy. General Colville's column was within a few miles, but though the firing was heard, he failed to relieve. This is also known as the action of Kornspruit.