Hundred Years' War
Historians commonly divide the war into three phases separated by truces: the Edwardian War (1337–1360), the Caroline War (1369–1389), and the Lancastrian War (1415–1453). Local conflicts in neighbouring areas, which were contemporarily related to the war, including the War of the Breton Succession (1341–1365), the Castilian Civil War (1366–1369), the War of the Two Peters (1356–1369) in Aragon, and the 1383–85 crisis in Portugal, were availed by the parties to advance their agendas. Later historians adopted the term "Hundred Years' War" as a historiographical periodisation to encompass all of these events, thus constructing the longest military conflict in European history.
Battle of Gerberoy
In spring 1435 the Hundred Years' War, after a few years of relative calm began to come back into a hot phase. The English armies were operating from northern France and Aquitaine. They also controlled Paris, Saint-Denis and the whole of Normandy. Nevertheless, the situation in the occupied territories for the English during the last decades had become more difficult. Although Joan of Arc was captured in 1430 and executed in 1431, it seemed to be more difficult to rule France and enforce the Treaty of Troyes.