You need to build 30 foot walls to keep out the hordes of violent sandniggers the jews who run your country keep shipping in. You might want to consider electrifying the outward facing wall and installing turrets.
I like your idea 100%, maybe disguise it inside hedges and trees and the like.
Be sure to put signs that trespassers will be shot on sight. That's their warning. Put some in Spanish too.
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