[OB1kNOb]

Mine it.
Razorwire it.
Electrify it.
Moat it.
Snake pit it.
Guard dog it.
Tripwire it.

And anything else we can incorporate.

[highnoon]

cooperation: I get 'em top half of the hour, you get bottom half

confidence: I know we're great shots


technology: night-vision scopes

[NYTexan]

A half mile wide Nuclear & chemical waste dumping ground on the border would solve a number of problems!

[xrp]

How about outposts like this:

From Monty Python and the Holy Grail