All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.
We thank you very much, dear brother, for visiting our site often. Moreover, we apologize for not being able to give an answer to your query. In fact, writing research papers is not from the services we provide in Islamweb. This site is busy clarifying Islamic rulings for those who seek Fatwa. However, we think that you can read: “Wars and their influence on the Islamic Fiqh” (Jurisprudence) written by Wahba al-Zuhaily . We think that this is a good reference in the subject you enquired about. You may also consult books that were written about “international relations in Islam”.
Allah knows best.