NATO's CCD CoE has released what it has called the "Tallinn Manual" — an analysis of the rules of war and international law as they apply to cyberwarfare.
It's interesting to think the extent to which acts in preparation of war, and acts of war themselves, might be conducted against communications infrastructure, or indeed using communications infrastructure. It also puts private companies in an interesting position, where an attack on their assets, their network, is a legitimate in war time.
It's a substantial document — >200 pages — but it is well written, and sets out various points on view on different topics. If cyberwarfare is indeed to grow in prominence, this is probably a most important text to read.
