One of the reasons why international tension increased in Europe in the period 1912 to the assassination of Archduke Franz Ferdinand in June 1912 was because the Balkan States were fed up of being owned by the Ottomans, so Serbia, Greece, Bulgaria, and Montenegro came together and formed the Balkan League and decided to attack them. This was the first Balkan War. In just 3 weeks the Balkan League had pushed the Ottoman Empire as far back as Adrianople in Turkey. This increased tension in Europe because the fall of the Ottoman Empire worried Austria-Hungary because they thought that they were Serbia’s next target as they had become strong during this time. The first Balkan War ended because Britain and France helped them to sign a peace treaty.
Another reason why international tension increased in Europe in the period 1912 to the assassination of Archduke Franz Ferdinand in June 1914 was the second Balkan War. Within three weeks of signing the peace treaty, the Balkan countries had started fighting again, but this time they were fighting against each other about the land they had won and the land they wanted to win. Bulgaria attacked its former allies because it was unhappy with its gains and Romania and the Ottomans joined in to win back the land that they had lost. Serbia turned out to be the most powerful country but they were the most dissatisfied. This increased tension in Europe in the period 1912 because Serbia did not want Austria to grow in power so they assassinated the Archduke Franz Ferdinand.
The main reason why international tension increased in Europe was the assassination of the Archduke Franz Ferdinand. Because Serbia did not want Austria to grow in power they decided to assassinate the Archduke. The Serbian government decided to set up a terrorist group called the Black Hand Gang. On the 28th June 1914 seven