France was defeated after the Franco-Prussian War. This sparked the revenge of the French. The annexed territory between Alsace-Lorraine was also a concern.
Serb Gavrilo Princip- a 19-year old shot the Archduke and his wife when they visited the patients at the hospital who were wounded from the failed assassination
March Revolution- 10,000 working class women marched at Petrograd (St. Petersburg) and demanded for 'Peace and Bread' and the dissolution of the Tsar government