describe examples from nations that were building their militaries in Europe prior to WWI, that caused tension?

Prior to World War I, there were several examples of nations in Europe that were building their militaries and causing tensions among the countries. Some notable examples include:

1. Germany: Under the leadership of Kaiser Wilhelm II, Germany rapidly expanded its military capabilities, specifically its navy, to challenge the dominant naval power, Great Britain. Germany's naval expansion, such as the construction of dreadnoughts, threatened British naval supremacy and raised concerns in the UK.

2. Austria-Hungary: The Austro-Hungarian Empire focused on building a powerful army as it was concerned about its territorial integrity due to its multi-ethnic composition. Austria-Hungary's military buildup amplified tensions as it sought to maintain its influence in the Balkans, which was an area of competing national interests.

3. Russia: Facing its own internal pressures and instability, Russia significantly increased its military spending and modernization efforts. Their ambitions included expanding their influence in the Balkans and asserting themselves against the Austro-Hungarian and German powers. Russia's growing military capabilities added to the overall arms race in Europe.

4. France: After its defeat during the Franco-Prussian War (1870-1871), France sought to rebuild its military strength and regain lost territories, particularly in Alsace-Lorraine. France's rearmament and the development of the modern French army led to a military rivalry with Germany, escalating tensions between the two countries.

5. Great Britain: Despite having the largest navy in the world, the United Kingdom saw the German naval expansion as a threat to its supremacy. This led to the intensification of the naval arms race between the two powers, as the British sought to maintain their naval dominance.

These military buildups, coupled with competing imperial ambitions, unresolved territorial disputes, and complex alliances, created a volatile atmosphere in Europe that eventually contributed to World War I. Each nation's military expansion raised concerns and suspicions among its neighbors, setting the stage for escalating tensions and conflict.