Compare the roles of the three countries of the central powers.

The countries that made up the Central Powers were the German Empire, the Austria-Hungarian Empire, the Ottoman Empire and the Kingdom of Bulgaria. These countries were called the Central Powers because of their geographical location. The countries that were considered the Central Powers banded together because of their geographical location and because they had a pride and loyalty to each other as the result of past losses. They were located in between the Russian Empire and Great Britain and France. The Russian Empire was located to the east of the Central Powers and Great Britain was to the west of the Central Powers. Among the three countries, Germany had the greatest military advantage. It is also the militarist war designer and strategist that led their alliance. Austria- Hungary unification and involvement during World War I started after the assassination of their King Archduke Ferdinand. Austria and Hungary believed that it was a Serbia assassination plot. The Ottoman Empire signed the alliance with Germany because of its good economic relationship. Bulgaria who came in last in the Alliance. It claimed that Serbia took a part of its land that made it get to war. 

The congress completes the diagram