In Gaza, there is no such thing as 'innocent civilians'

[FBaggins]

7. Titles are not always drawn from the author's words

In this case, the penultimate paragraph provides the context.

In order to guarantee our interests versus the other side's demands, we must avoid the artificial, wrong and dangerous distinction between the Hamas people, who are "the bad guys," and Gaza's residents, which are allegedly "the good guys." We are dealing with an enemy state, not with a terror organization which is seemingly operating from within an innocent civilian population.

That's not saying that there are no innocent civilians. It's saying that Gaza is a de-facto enemy nation. That the people there elected Hamas and the Hamas attacks are not cells of terrorists operating in someone else's country... they are the military arm of the local government.

There can still be innocent civilians in an enemy nation. Nazi Germany civilians were still not legitimate military targets - despite being responsible for the government they elected (ignoring argument re: how Hitler rose to power - etc).