Right. So the difference is the "killable" status of suspected Al-Qaeda members must be established by due process, but for enemy soldiers the "due process" is

Right. So the difference is the "killable" status of suspected Al-Qaeda members must be established by due process, but for enemy soldiers the "due process" is simply the identification of their uniform. Then what is the effective and ethical way of waging war against non-uniformed enemy? Arrest everyone then try them? What if it's not practical to do that?