Hundred Years' War (1415–53)
The Lancastrian War was the third and final phase of the Anglo-French Hundred Years' War. It lasted from 1415, when King Henry V of England invaded Normandy, to 1453, when the English lost Bordeaux. It followed a long period of peace from the end of the Caroline War in 1389. The phase was named after the House of Lancaster, the ruling house of the Kingdom of England, to which Henry V belonged.
Gascon campaign (1294–1303)
The Gascon campaign of 1294 to 1303 was a military conflict between English and French forces over the Duchy of Aquitaine, including the Duchy of Gascony. The Duchy of Aquitaine was held in fief by King Edward I of England as a vassal of King Philip IV of France. Starting with a fishing fleet dispute and then naval warfare, the conflict escalated to open warfare between the two countries. In spite of a French military victory on the ground, the war ended when the Treaty of Paris was signed in 1303, which restored the status quo. The war was a premise to future tensions between the two nations culminating in the Hundred Years' War.