Renewed War: From du Guesclin to Agincourt and Troyes

The Treaty of Brétigny proved a fragile peace, and Charles V of France, called "the Wise," resumed the war in 1369. Having absorbed the lessons of Crécy and Poitiers, Charles deliberately avoided pitched battles, and his constable Bertrand du Guesclin waged a patient war of sieges, ambushes, and attrition that recovered almost all of the territory ceded at Brétigny by around 1375, leaving England little more than Calais, Bordeaux, and Bayonne. Both kingdoms were then exhausted by decades of fighting, and a long series of truces followed through the 1380s and beyond, formalized in the Truce of Leulinghem of 1389.