They put up a fence around the 'perimeter of' the yard.
The soldiers defended the 'perimeter of' the camp.
The 'perimeter of' the rectangle is 24 inches.
(..) There's something else you have to see. MAN : Hard wall. OLSEN: Get what we came for, Barbarosa. The clock's ticking. Spread out, secure the perimeter. I got a big gap over here. JOHN: Why didn't we know about this? BARBAROSA: Sir, I think this is what Command's looking for. (..)2009 Terminator Salvation