http://www.dod.mil/dodgc/images/law_war_manual15.pdf

“This manual reflects many years of labor and expertise, on the part of civilian and military lawyers from every Military Service. It reflects the experience of this Department in applying the law of war in actual military operations, and it will help us remember the hard- learned lessons from the past. Understanding our duties imposed by the law of war and our rights under it is essential to our service in the nation’s defense.”

-Stephen W. Preston, General Counsel of the Department of Defense

 

but see, contra:

http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2712004

“This essay focuses primarily on several egregious errors and manifest misconceptions contained in portions of Part I of the 2015 Department of Defense Law of War Manual.”

-Professor Jordan J. Paust, University of Houston Law Center