When Great War started, it influenced the entire world policy and economy. Millions of people died and equal number of people became homeless. Big empires of 20th century fell apart and new small national countries were established. We can say that WWI caused a really big disaster, especially for country which was participant. But there are similarities and differences how it did effect. On different countries in the same way war had different influence. The example for that is Germany and Serbia.
Politic
War had the most influence on politic in Germany. The German Empire--often called the Second Reich to distinguish it from the First Reich, established by Charlemagne in 800--was based on two compromises. First agreement was between the King of Prussia and the rulers of the German states, to accept Wilhelm II as the emperor of Germany. The second was agreement between lots of segments of Germany society to accept a unified Germany based on constitution that combined powerful authoritarian monarchy with a weak representative body.
The beginning of war was the perfect opportunity for Germany to secure ‘place under the Sun’ as the Keiser Wilhem II put it, which was supported by the current nationalism of the public. The Kaiser Wilhem II hoped that the War will join the public behind monarchy, and reduce the dramatic growth of the Social Democratic Party of Germany. Despite their history, the Social Democratic Party of Germany ended its differences with the government and abandoned its principles of internationalism to support the war effort. The wars lead Kaiser being forced into abdication. So, this influenced to making space, which was field by the Weimar Republic.
In Serbia it was entirely different.
John Reed concluded that Serbia was one of the most democratic ones in the world. In reality, it was about the atmosphere of spontaneously occurred nation war for the defense of independence and, at the same time, for the ideal of
Bibliography: Istorija Srpskog Naroda VI-2 , Pavle Ivic, Predrag Palavestra, Andrej Mitrovic, Radovan Samardzic. Beograd NOLIT 1982 http://workmall.com/wfb2001/germany/germany_history_imperial_germany.html http://en.wikipedia.org/wiki/Social_Democratic_Party_of_Germany John Reed, War in Serbia 1915, pages 70, 81-83 E.Redzic, Austromarksizam, 412-416; D.Jankovic, Srbija 1914-1915, page 300-325