Sounds like a job for a ham sandwich

Oh dear, who do we kill?

The increasing murkiness of the battlefield, as the freewheeling rebels advance and retreat and as fighters from both sides mingle among civilians, has prompted NATO members to issue new “rules of engagement” spelling out when the coalition may attack units on the ground in the name of protecting civilians.

It was unclear how the rules are changing — especially on the critical questions surrounding NATO’s mandate and whether it extends to protecting rebels who are no longer simply defending civilian populated areas like Benghazi, but are instead are themselves on the offensive.

“This is a challenge,” said a senior alliance military officer. “The problem of discriminating between combatant and civilian is never easy, and it is compounded when you have Libyan regime forces fighting irregular forces, like the rebel militias, in urban areas populated by civilians.”

I thought we went over this yesterday. Any civilian you kill is easily reclassified as a combatant provided you remembered to bring your drop weapon with you.