Der Untergang des Abendlandes
German philosopher and world historian Oswald Spengler was inspired by the episode to write his "The Decline of the West". "The Agadir crisis of 1911, which suddenly raised the specter of a general European war and strikingly revealed the danger of Germany's encirclement by the Entente, crystallized Spengler's nascent vision of the future international political transformation of the West."