Hundred Years' War English-occupied Calais. In a campaign reminiscent of Crécy, he found himself outmanoeuvred and low on supplies and had to fight a much larger French army at the Battle of Agincourt, north of the Somme. Despite the problems and having a smaller force, his victory was near-total; the French defeat was catastrophic, costing the lives of many of the Armagnac leaders. About 40% of the French nobility was killed. Henry was apparently concerned that the large number of prisoners taken were a security risk (there were more French prisoners than there were soldiers in the entire English army) and he ordered
Battle of Agincourt Saint-Remy who was present at the battle, and the other from Enguerrand de Monstrelet. The English eyewitness account comes from the anonymous "Gesta Henrici Quinti", believed to be written by a chaplain in the King's household who would have been in the baggage train at the battle. A recent re-appraisal of Henry's strategy of the Agincourt campaign incorporates these three accounts and argues that war was seen as a legal due process for solving the disagreement over claims to the French throne. Henry V invaded France following the failure of negotiations with the French. He claimed the title of King