Quote Originally Posted by scbubba View Post
Of the domestic US military bases I've worked on (former DoD contractor), none of them fit the "castle wall" kind of setup. They have controlled vehicle access gates and several ways to defend against attack. But most have very large perimeters and expect ground assaults to be mainly vehicle based.

All that to say, very large numbers of hard to kill individuals would be hard to defend against, me thinks.

But I've never been in the military nor actually defended a base, so I may be mistaken.
There aren't any walls around the main base at Fort Irwin, just a barbed wire fence with cattle grates at the crossing points. But there are very effective choke points on every access route to the base that could be turned into giant kill zones, and enough space to conduct an effective defense in depth.