The Second Hundred Years' War is a periodization or historical era term used by some historians to describe the series of military conflicts between Great Britain and France that occurred from about 1689 to 1815.
The Second Hundred Years' War is named after the Hundred Years War, when the rivalry between England and France began in the 14th century. The term appears to have been coined by J. R. Seeley in his influential work The Expansion of England.