[cashflyer]

We need something with laaazers.....



But seriously:

Make a 200yd wide dead zone along the entire border, with 10ft high chain-link, topped with concertina running the length at both the 0yd and 200yd lines. At the 100yd center line, make it 15ft concertina topped chain link, electricied by solar and wind generators (to be ecologically friendly).

The ground of the dead zone needs to be vegetation free. Add motion detectors that illuminate the area of movement with high intensity stadium lighting. And add sniper towers at necessary intervals along the path.

Finally, install seismic sensors at intervals in the zone to detect tunnelers.

Now you have border protection.