World War I began in Russia on August 1, 1914, less than three years before the revolution. On that day, Germany declared war on the Russian Empire. This was four days after the official beginning of WWI and just over one month after the throne of Austria-Hungary, Archduke Franz Ferdinand, was murdered. Russia fought in WWI together with its allies (France and the UK), which were supported by over two dozen states, including the US, Japan, Serbia, Italy and others. On the opposing side were the Central Powers (Germany, Austria-Hungary, the Ottoman Empire and Bulgaria).On September 1914, Russia inflicted a painful defeat on Austria-Hungary The Ottoman Empire and Bulgaria.On September 1914, Russia inflicted a painful defeat on Austria-Hungary, claiming large territories in Galicia (now Ukrainian territory). Austria-Hungary lost nearly half of its 830,000 troops in the massive campaign, raising doubts about its capabilities.