Militarism: isa belief that it is necessary to have a military power to win a political and economicadvantages After1907, there was an increase in military influence on policy makingThiscould be reflected particularly in Germany and RussiaGermanArmy at this period was called a “State within the State”.  Alliances: is a agreement between two ormore countries to give each other a help if it is needed  ·            the six major powers of Europe were splitinto two alliances that would form the two warring sides the Triple Entente andTriple Alliance·            Britain, France, andRussia joined the TripleEntente ·            Germany, Austria-Hungary, and Italy joinedin the Triple Alliance.  Imperialism: a situation inwhich one countryhas a lot of power or influenceover others, especially inpolitical  and economicmatters  ·            World War 1 was mainly causedby Imperialism·            Imperialism needs manpowersuch as an army and a navy for building an empire to conquer and keep the landthat they colonized.  nationalism: The belief that a people who share a common language,history, and culture should constitute an independent nation, free of foreigndomination.·            Nationalism helped leadto WWI because it caused conflict·            It was this pan-Slavic nationalismthat inspired the assassination of Archduke Franz Ferdinand in Sarajevo in June1914, an event that led directly to the outbreak of World War I.