Medieval longbows seem now to have been only marginally effective against armoured knights of early fifteenth century although Henry Fifth was wounded in the face at Shrewsbury in 1403 with a limited penetration possibly caused by an arrow through the breathing holes of a bascinet. He still chose mostly archers for his army 12 years later so he must have had good reason to do so even if his own injury was relatively unlucky. Was this the vulnerabilty of the horses ? or the multi-role fighting modes the archers were capable of. Is there any evidence of horse casualty rates? At Poitiers the French chose to attack dismounted and in several battles the archers were seemingly arraigned to effect arrow storms into the sides of the attack. was this more effective on horses or riders ?