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Why was Julius II’s war against France from 1510 to 1511 unsuccessful?

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Medallion depicting Pope Julius II — Julius II Julius II, contemporary medallion; in the coin collection of the Vatican Library.

Pope Julius II’s war against France from 1510 to 1511 was unsuccessful primarily due to internal ecclesiastical opposition and the strength of French forces. During this conflict, several cardinals defected to the side of King Louis XII of France and convened a schismatic council to challenge the Pope’s authority.1

While Julius II sought to drive the French from Italy as an exponent of Italian national consciousness, he initially lacked the necessary military support to secure a decisive victory during this specific period. The situation only shifted in his favor after he successfully organized a broader coalition, the Holy League, which brought together powers such as Spain, Venice, and the Swiss to eventually expel the French from northern Italy by 1512.12