Longest Wars in History

The longest wars in human history span centuries, with some conflicts lasting over 700 years. The Reconquista, the Christian reconquest of the Iberian Peninsula from Muslim rule, holds the record at 781 years from 711 to 1492. This was followed by the Roman-Germanic Wars which lasted 708 years from 113 BC to 596 CE, involving conflicts between the Roman Empire and various Germanic tribes. The Byzantine-Bulgarian wars spanned 715 years from 680 to 1395, marking one of the longest rivalries in medieval Europe.

Other exceptionally long conflicts include the Roman-Persian Wars at 681 years, the Arab-Byzantine wars at 421 years, and the Anglo-French Wars which lasted 706 years. Many of these were not continuous fighting but rather series of conflicts with periods of peace in between. The Yaqui Wars between New Spain/Mexico and the Yaqui people lasted 396 years, while the Yemeni-Ottoman conflicts spanned 373 years. These extended conflicts shaped civilizations, redrew borders, and influenced cultural development across generations. The data reveals how geography, religious differences, and imperial ambitions contributed to conflicts that persisted for centuries, often with neither side achieving complete victory.

Sources: Wikipedia's "List of conflicts by duration", WorldAtlas.com, List25.com, various historical sources