1- The late nineteenth century was an era of military competition, particularly between the major European powers. The policy of building a stronger military was judged relative to neighbours, creating a culture of paranoia that heightened the search for alliances. It was fed by the cultural belief that war is good for nations. Germany in particular looked to expand its navy. However, the ‘naval race’ was never a real contest – the British always s maintained naval superiority.  But the British obsession with naval dominance was strong. Government rhetoric exaggerated military expansionism.  A simple naivety in the potential scale and bloodshed of a European war prevented several governments from checking their aggression.
2- A web of alliances developed in Europe between 1870 and 1914, effectively creating two camps bound by commitments to maintain sovereignty or intervene militarily – the Triple Entente and the Triple Alliance.
- The Triple Alliance of 1882 linked Germany, Austria-Hungary and Italy.
- The Triple Entente of 1907 linked France, Britain and Russia.
A historic point of conflict between Austria Hungary and Russia was over their incompatible Balkan interests, and France had a deep suspicion of Germany rooted in their defeat in the 1870 war.
3- Imperial competition also pushed the countries towards adopting alliances. Colonies were units of exchange that could be bargained without significantly affecting the metro-pole. They also brought nations who would otherwise not interact into conflict and agreement. For example, the Russo-Japanese War (1905) over aspirations in China, helped bring the Triple Entente into being.It has been suggested that Germany was motivated by imperial ambitions to invade Belgium and France. Certainly the expansion of the British and French empires, fired by the rise of industrialism and the pursuit of new markets, caused some resentment in Germany, and the pursuit of a short, aborted imperial policy in the late nineteenth century.
4- Nationalism was also a new and powerful source of tension in Europe. It was tied to militarism, and clashed with the interests of the imperial powers in Europe. Nationalism created new areas of interest over which nations could compete.
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