[thesummerwind]

Found this ............

Freefire zone, an area designated to be clear of civilians and friendly troops. Well posted and usually large and vital to the enemy for either access to food growing or as an area of passage.

In Iraq we would setup areas from the border inward for say ten miles all along the borders, there would be small well defined areas of safe passage under human super vision.

[river rat]

The one most important aspect of "Free Fire Zones".....
ANY and ALL humans observed within - were considered to be the enemy, and WOULD be fired upon...

Not a healthy place to be.

Semper Fi