Russia, being the largest and most powerful of all the Slavic countries, was viewed as the protector of all the Slavic people. When Austria-Hungary declared war on Serbia, Russia retaliated against...
In 1914, a Serbian student assassinated Archduke Franz Ferdinand of Austria. Austria wanted to punish Serbia, who was allies by Russia. Austria later declared war on Russia on August 6, 40 days after...
Russia and Germany had the two biggest armies in World War I. Both also had the highest number of soldiers killed in action (not percentage though). Germany defeated Russia in 1918.