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 two-to-one". However, Clifford J. Rogers, professor of history at the United States Military Academy at West Point, has recently argued that archival records are too incomplete to substantially change his view that the English were outnumbered about 4–1. Juliet Barker also disagrees with Curry's arguments in the acknowledgements section of her 2005 book on Agincourt, saying: "Surviving administrative records on both sides, but especially the French, are simply too incomplete to support [Curry's] assertion that nine thousand English were pitted against an army only twelve thousand strong. And if the differential really was as low as three to four then