Search WorldCat for books found in libraries worldwide. Possible subject headings may include:
combatants and noncombatants
crimes against humanity
geneva convention
genocide
international humanitarian law
law of war
prisoners of war
war (international law)
war -- protection of civilians
war victims
Specialized Library Catalogs
Library catalogs offer access to a library's collection. Consult these catalogs of worldwide libraries specializing in human rights materials. This will help broaden your search by identifying resources not readily available in your library.
A good way to start research is to obtain a bibliography compiled by an expert in the field. Bibliographies offer an oveview of relevant literature by listing selected books, articles, or documents on a particular topic.