The Law of Armed Conflict (LOAC) deals with the rules on the conduct of warfare, the rules relating to the rights and dutes of armed forces during a conflict, and the rules that protect potential or actual victims of armed conflict. LOAC is often also referred “international humanitarian law” or IHL.
For a basic introduction to LOAC/IHL, see International Humanitarian Law: Answers to your Questions, published by the International Committee of the Red Cross (ICRC).
These resources are good starting points for most research projects. They will identify relevant books, articles, and websites.
ASIL Guide to Electronic Resources for International Law, Humanitarian Law.
Harvard Law Library, International Humanitarian Law research Guide.
Globalex, research guides on international, foreign and comparative law topics.
The Peace Palace Library has a number of research guides on the topic of War, Peace and Security, which include citations to books and articles, along with links to online sources of interest.
Research Guide: International Humanitarian Law.
United Nations Documentation: Research Guide.