Question

how did the tension of Balkan became the cause of first world war​

Answer 1

A significant cause of European tension prior to World War I was continued instability and conflict in the Balkans. ... At the turn of the century, the Balkan region was less populated and under-developed, in comparison to western Europe; it had few natural resources, so was hardly an economic prize.

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Answer 2

Answer:

A. Balkans was a region of geographical and ethical variations comprising modern day Romania, Bulgaria, Albania, Greece, Macedonia, Croatia, Bosnia, Herzegovina, Slovenia, Serbia and Montenegro whose inhabitants were known as slaves.

B. A large part of the Balkans was under the control of the Ottoman Empire. The spread of the ideas of romantic nationalism in the Balkan together with the disintegration of the Ottoman Empire made this region very explosive.

C. As the different Slavic nationalism struggled to define their identity and independence, the Balkan area became as area of intense conflict.

D. The Balkan states were jealous of each other and each hoped to gain more territory at the expense of other. Balkans also became as area of big power rivalry.

E. Each European power such as Russia, Germany, England, Austria-Hungry was keen on countering the hold of other powers over Balkans and this led to a series of wars eventually the First World War.