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.
Hundred Years' War
Although the Battle of Castillon is considered the last battle of the Hundred Years' War, England and France remained formally at war for another 20 years, but the English were in no position to carry on the war as they faced unrest at home. Following defeat in the Hundred Years' War, English landowners complained vociferously about the financial losses resulting from the loss of their continental holdings; this is often considered a major cause of the Wars of the Roses, that started in 1455.