Causes of WWI

The cause of world war one was during the Franco Prussian war France lost Allsace Lorraine to Germany. With the loss of thier land, tension was created. The Balkans were in an area that other countries wanted but they believed that if something happened there that the countries would errupt in war.All of the countires were fighting over land in Africa to increase thier nationalism. Then the Assassination of Archduke Franz Ferdiniand occured. When he was killed by a Serbian the Balkans were outraged and sparked the war to start.