Thirty Years' War
https://en.wikipedia.org/wiki/Thirty_Years%27_War
The Thirty Years' War was one of the longest and most destructive conflicts in European history, lasting from 1618 to 1648. Fought primarily in Central Europe, an estimated 4.5 to 8 million soldiers and civilians died as a result of battle, famine, and disease, while some areas of what is now modern Germany experienced population declines of over 50%.
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Hundred Years' War
https://en.wikipedia.org/wiki/Hundred_Years%27_War
The Hundred Years' War (French: La guerre de Cent Ans; Picard: Dgère d'Un Chint An; 1337–1453) was a series of armed conflicts between the kingdoms of England and France during the Late Middle Ages. It originated from English claims to the French throne. The war grew into a broader power struggle involving factions from across Western Europe, fueled by emerging nationalism on both sides.
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Those who cannot remember the past are condemned to repeat it.
- George Santayana
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