 At 8pm, a messenger from 7th Cavalry Brigade HQ informed the acting commander that A Squadron was "the only squadron holding the section of trench originally occupied by 7th Brigade", and that they were to hold the line until a counterattack could be mounted.By the morning of the 13th, seven officers - including the regimental commander and two of three squadron commanders - and 87 other ranks had been killed; the unwounded numbered only 92 other ranks.The counterattack, launched the next afternoon at 2