The First World War broke out with the declaration of war by Austria-Hungary, on July 28, 1914, upon Serbia. The World War was fought between- the Allied Powers, consisting originally of France, Britain and Russia, and the Central Powers, consisting of Austria-Hungary, Germany and the Turkish Empire. Italy joined the Allied powers in 1915; while the USA joined the Allied powers in April 1917. Also, after the Bolshevik Revolution in November 1917, Russia withdrew from the war.

19^th Century International Relations are described as a combination of nationalism, economic imperialism and balance of power. Economic Imperialism was more an outcome of ultra-nationalism, industrial revolution and capitalism. Read More…