Answer: Triple alliance= a union or association between three powers or states, in particular that made in 1668 between England, the Netherlands, and Sweden against France, and that in 1882 between Germany, Austria-Hungary, and Italy against France and Russia.
Central powers= Germany, Austria-Hungary, Bulgaria and the Ottoman Empire
Cause of WW1= The kickoff/cause of WW1 began on June 1914. A Serbian-nationalist terrorist group called the Black Hand sent groups to assassinate Archduke Franz Ferdinand of Austria, Hungry.
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