Editing Charles V of France (section)

===War resumes===
[[File:Ofensivas Tovar-Vienne contra Inglaterra 01.jpg|thumb|Franco-Castillian raids on England]]
After the Castillan campaign, the Black Prince was invalid and heavily in debt. His rule in [[Gascony]] became increasingly autocratic. Nobles from Gascony petitioned Charles for aid, and when the Black Prince refused to answer a summons to Paris to answer the charges, Charles judged him disloyal and declared war in May 1369.

Instead of seeking a major battle, as his predecessors had done, Charles chose a [[Attrition warfare|strategy of attrition]], spreading the fighting at every point possible. The French and Castillan navies [[Battle of La Rochelle|destroyed an English fleet]] at [[La Rochelle]] in 1372. Then, du Guesclin launched destructive raids against the coasts of England, naval reprisals to the English ''[[chevauchée]]s.'' Bertrand du Guesclin, appointed [[Constable of France]] in 1370, beat back a major English offensive in northern France with an unnerving combination of [[Raid (military)|raid]]s, [[siege]]s, and [[pitched battle]]s. He notably crushed [[Robert Knolles]] at the [[Battle of Pontvallain]].

Most of the major English leaders were killed in a few months and the Black Prince fled to England, where he died in 1376. By 1375, Charles recovered much of the English territories in France except [[Calais]] and [[Gascony]], effectively nullifying the [[Treaty of Brétigny]].