I’ve spent more nights than most scholars looking at Roman fortifications, and they’re a masterclass in engineering. They layered stone and concrete, built a core of rubble for weight, and then faced the exterior with tightly cut ashlar. The mortar wasn’t just filler—it was a hydraulic lime that hardened underwater, which is why many of their walls still stand. Their towers were strategically spaced, allowing defenders to overlap fields of fire. If you can learn to blend that kind of material science with modern techniques, you’ll have a defence system that not only resists the enemy but also the march of time. The Romans didn’t just build walls; they built time capsules of durability.

That’s precisely the sort of approach that keeps me up at night—studying the way the ancients combined form and substance to create something that outlasts generations. If you keep that focus, your own fortifications will stand the test of time as well.

Glad to hear it. Keep digging into the details, and those foundations you build will be unshakable.