you are building a prison, beefed up with thick walls, fences, and the best technology (radars n all that jazz), anything to make your base an absolute nightmare to get into if someone were to try and escape/enter unauthorized.
heres the catch: you can put only two extra types of defenses on the base, from barbed wire, electric fencing, a super mega death laser, anything you wish.
what are those two things?
lots of razor wire probably