'Nanayakkara said that the army has created a 10km square no-fire area
to allow civilians to go south.
An effective technique is to think of NAIs as "active" or "inactive." An active NAI is one that has an observer in place and in communication with the CP, with a no-fire area
around the observer.
The Houthis have also learned to use no-fire areas
(NFAs) to their advantage.
These include no-fire areas
(NFAs), fire coordination lines (FCLs), and no maneuver areas between the MGS' planned firing positions and targets--keeping all friendly forces well clear of the MGS' muzzle-to-target line.
"It's very hard for a pilot to know what he can and can't do when there are literally thousands of these no-fire areas
," Longoria recalled.
In the battle space, one can use grid boxes for restrictive-fire areas, no-fire areas
, air-to-air kill areas, and combat search and rescue areas, to name a few.
The COR worked with the Fire Support Officer (FSO) to protect the teams from artillery by covering them with no-fire areas
(NFAs) or critical friendly zones (CFZs)  that allowed the BRT's teams room for limited relocation of their LP/OPs when necessary.