Commentary Engineers, especially civil engineers, build things. It’s what we do, and we consider each project, large or small, “our” project. Being a civil engineer in the Army engineering branch was especially rewarding. We played with bridge sets, construction equipment, and building parts. Army combat engineering also meant building structures for war: runways, fighting positions…

Commentary Just about everyone in the military is familiar with the sheep, wolves, and sheepdog analogy, as popularized by LTC (Ret) Grossman in his book “On Combat.” We all fit into one of those categories, he says—we need protecting, we are a predator, or we are a protector. While Grossman’s analogy has a lot to…