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In page Burgos:

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Burgos has been the scene of many wars, including conflicts with Muslim states, struggles between León and Navarre, and conflicts between Castile and Aragon. In the Peninsular War against Napoleonic France, the siege of Burgos (between 19 September to 21 October) was a scene of a withdrawal for Arthur Wellesley, 1st Duke of Wellington. Again, during the 19th century wars of the Spanish succession, Burgos was the site of a battle. During the Spanish Civil War, Burgos was the base of Francisco Franco's rebel Nationalist faction.[citation needed]