What would be the Eight Main Characteristics of a War between the United States and North Korea?

A great deal of attention is currently focussed on the possibility of a conflict between the United States and North Korea, but what would be the character of a war between these powers if it actually broke out?  Recent conflicts and current military preparedness would only be a guide to the very early stages, and there are much more significant implications to consider. Here are ten possible characteristics for analysts to think through...