What factors caused the world scale of the First World War?

It is known that the First World War was a world conflict, since the hostilities spread in different parts of the world: Africa, Europe, Asia. In addition, most of the large countries of the world with great influence and military power took part in the war. Also, during the hostilities, about 60 million soldiers were mobilized, of which 10 million were killed and 20 were injured.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.