In fact, as mentioned above, this was the most significant outcome of the war. The loss affected the French people. They were bullied and teased and went from being a threat to a laughing stock in a matter of weeks. This would make them thirsty for revenge. The reason why this would be the most important outcome of the Franco-Prussian War was because the French swore revenge, and with this promise, the next war that would occur was a war that changed humanity: and this war would be the Great War. , or the beginning of an era known as World War I. Works Cited"Causes of the Franco-Prussian War". Np, nd Web. 09 November 2014.Duffy, Michael. "Primary Documents - Ems Telegram, 1870." First World War.com. Np, 22 August 2009. Web. 12 November 2014."The Franco-Prussian War." Franco-Prussian War. History World International, nd Web. 12 November 2014. Kober, Stanley. "What Napoleon and Bismarck Teach Us About Preventive War." Cato Institute. Np, September 18, 2004. Web. November 13, 2014. "Bismarck's Blood and the Iron Speech." Conveying the Wisdoms of the Ages: Famous Quotes / Citations. Np, nd Web. November 13, 2014. Walker, Bruce. "Bismarck's Blood and Iron Speech 150 Years Later. "Bismarck's Blood and Iron Speech 150 Years Later. New American Magazine, September 30, 2012. Web. November 13, 2014. "Why France Declared War in 1870." SILVAPAGES. Np, 2 Web. 14 Nov.