Hierarchy in pre -international systems

Description, this is a concept paper. Please give definition , strong thesis statement . reason for the chosen topic and how it relates to the pre-international systems of Hunter Gathering Band(HGB)How does Hierarchy emerge ? why did it emerge? How does it function . Relate it to why tribe formed pre-international systems . Use these books as 3 of your references : International Systems in World History: Remaking the Study of International Relations by Barry Buzan and Richard Little | Apr 1 2000 Globalization, Second Edition: A Critical Introduction by Jan Aart Scholte | Sep 15 2005 International Relations: The Key Concepts by Steven C. Roach, Martin Griffiths, et al. | Dec 5 2013