The first axis:Definition of great powers concept
The concept of great powers is a complex one, with traditional definitions focusing on wealthy states with economic power,large military capabilities, and involvement in the international system's economic and security matters. However,the study of great powers has been influenced by the realist tradition, which defines them in terms of their relative power to other states.This means that maintaining a great power's relative power advantage is a major concern for maintaining security. Power is measured in terms of relative military powers, economic power,and potential power, including factors such as population size,raw materials reserves,technological levels,educational development,and unused fertile territory.
References for the first axis:
1-StephenM.Magun,Great Powers and US Foreign Policy towards Africa.Palgrave Macmillan,2019.
2-Nick Bisley,Great powers in the changing international order.Lynne Rienner Publishers,2012.
3-Carla Martinez Machain,Rebecca Kaye,and Jared Oestman,Great Power and Foreign Policy.Oxford Research Encyclopedia of Politics,2017.
4-Alexadra Gheciu and William Wohlforth,The oxford handbook of international security.Oxford University Press,2018.