sentences:  A couple of nights later the British supported by a detachment of the Natal Police launched a commando attack again this gun, damaged its muzzle with a charge of gun cotton and removed its breech block.One of the Long Toms at Ladysmith was taken forward for use during the Battle of Vaal Krantz.Prior to 5 February 1900 an emplacement had been prepared for it on a hill called "Doringkop" (Thorn Hill).