Question

Why were all countries joining the first world war?​

Answer 1

Answer:

The simplest answer is that the immediate cause was the assassination of Franz Ferdinand, the archduke of Austria-Hungary. His death at the hands of Gavrilo Princip – a Serbian nationalist with ties to the secretive military group known as the Black Hand – propelled the major European military powers towards war.

Answer 2

Answer:

Causes of the war

Firstly, there was the role of empire. Great Britain, Germany, Austria-Hungary and Russia all had empires. This meant that they ruled many countries all over the world. Each of these countries wanted to keep their empire strong and was afraid of other countries taking over new territories.