Recently ratified Protocols to the Geneva Conventions of 1949 reflect the experiences of the last three decades. Among subjects covered are means and methods of warfare, legality of weapons, protection of medical transportation, and internal warfare.
"The 1977 Protocols to the Geneva Convention of 1949,"
Naval War College Review: Vol. 31
, Article 4.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol31/iss1/4