Since WW2 the difference between war and peace have been more and more blurred. Proxy wars, drones and "cyber warfare" have made open conflicts directly between superpowers almost non-existent.

Classic warfare, atomic, biological and chemical weapons all have rules and a loads of regulations. The "cyber" sector have a long process ahead to catch up. Unfortunately no one seems interested in being really serious about it it, but I certainly wish they will start work on it.

Hopefully we will never experience an all-out "cyber war". Probably a new kind scenario with massive damages to infra structure, lots of civilian casualties and almost no losses among military personal.