What were the causes and consequences of frequent wars in the primitive era?

In those distant times, the reasons for the denouement of the military could be:

1) The struggle for survival, that is, one tribe attacked another in order to get food or capture livestock.

2) Resettlement, often tribes in search of new lands came across other peoples, such meetings often led to war.



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.