How did Hitler make use of the Spanish Civil War?

With the outbreak of war in July 1936, German intervention in the Spanish Civil War began, with Adolf Hitler quickly sending in strong air and armoured units to support General Francisco Franco and his Nationalist forces.

world war i began in 1914, after the assassination of archduke franz ferdinand, and lasted until 1918. during the conflict, germany, austria-hungary, bulgaria and the ottoman empire (the central powers) fought against great britain, france, russia, italy, romania, japan and the united states (the allied powers). to new military technologies and the horrors of trench warfare, world war i saw unprecedented levels of carnage and destruction. by the time the war was over and the allied powers claimed victory, more than 16 million people—soldiers and civilians alike—were dead.

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