Is Cyber a new warfare? Debate (catch all)

[selil]

I keep asking and it never gets an answer:

What does "cyber" mean?

If cyberspace is a domain, then we should be able to describe cogently what is meant by a cyber (sic) "war".

Wouldn't "cyber-style" attack (absent any other useful definition) be the tipper that leads to a response decision, vice a whole "war"?

Cyber literally means command and control. Less literally the domain in which all of that happens. Now describe sea without self referencing it or using a synonym.