Library of Congress Throughout history, a number of conflicts, due to the quirky nature of international diplomacy, never officially ended. Of course, these "extended wars" have never actually had any bearing on international relations. Instead, the ongoing de facto peace overrode any technicalities on the world stage. However, the patching up of these diplomatic irregularities has been used by countries still technically at war to boost their current ties and gain media attention. We have listed nine such examples of extended wars below. GREECE AND PERSIA Wikipedia DECLARATION OF WAR: Greco-Persian Wars, 499 B.C. DE FACTO PEACE: 449 B.C. DE JURE PEACE: 1902 In 499 B.C., the Persian Empire attempted to conquer the various city-states of Ancient Greece. Ultimately, the Persian efforts were unsuccessful, and the two civilizations remained at war with some intensity until the Persians called off their invasion attempts in 449 B.C. However, despite the war having ended centuries ago, Greece and Persia never officially mended their relationship until 1902. At that point, after 2,393 years of conflict, Persia (having not yet renamed itself Iran), appointed its first Greek diplomat. ROME AND CARTHAGE Wikipedia DECLARATION OF WAR: Punic Wars, 264 B.C. DE FACTO PEACE: 146 B.C. DE JURE PEACE: 1985 The conflict between Rome and Carthage was one of the defining moments of the creation of the Roman Empire. Between 264 B.C. and 146 B.C., the two empires fought a series of three wars known as the Punic Wars, which culminated in the Roman conquest of Carthage. As Rome seized and destroyed Carthage, there was no need for the two countries to formally sign a peace treaty. However, that did not stop the mayors of Rome and Carthage from signing a treaty of symbolic friendship and collaboration in 1985. The sign of goodwill had been consistently floated until that point by both Tunisian and Italian governments. ISLES OF SCILLY AND THE DUTCH REPUBLIC Wikipedia DECLARATION OF WAR: First Anglo-Dutch War, 1651 DE FACTO PEACE: 1654 DE JURE PEACE: 1986 In 1651, the Dutch Republic declared war on the Council of the Isles of Scilly, a small island archipelago under the British crown. The islands were harboring pirates who interfered with Dutch shipping. However, the conflict between the Isles of Scilly and the Dutch Republic quickly was subsumed into the wider First Anglo-Dutch war. Although the Dutch and British concluded their conflict in 1654, the Council of the Isles of Scilly were technically not included in the peace process. As such, the small islands and the Dutch remained at war until a Dutch ambassador visited the islands and formally concluded a peace settlement in 1986. SEE THE REST OF THE STORY AT BUSINESS INSIDER