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.
Second Hundred Years' War
The recurrent rhetoric used in each country shifted from references to a "natural enemy" to an agreement to tolerate one another. Common interests led the two to cooperate in the Crimean War of the 1850s. A century after fighting one another (and with the mutual interest in checking the growing power of a united Germany, aside from Austria, with its Empire), the two were able to establish the Entente Cordiale by 1904, demonstrating that the "First" and "Second" Hundred Years' Wars were in the past; cultural differences continued, but violent conflict was over.