As technology is increasingly used to do war’s dirty work, will military continue to be made up mostly of young males? From Rosa Brooks’ Foreign Policy argument for rethinking recruitment in the Information Age:

“For most of human history, having an army full of young men made lots of sense. As soldiers, young males have had two things going for them, historically speaking. First, they’re usually stronger, on average, than any other demographic group: they can run fast and carry heavy loads. Second, they’re (relatively) biologically expendable from a species-survival perspective: women of child-bearing age are the limiting factor in population growth. A society can lose a lot of young men without a devastating impact on overall population growth.

Today, though, these characteristics don’t matter as much as they once did. Overall birthrates are much lower in modern societies than they were during earlier periods, but life expectancy is much longer. Early societies worried about sustaining their populations; today we worry less about ensuring population growth than about overburdening the planet’s load-bearing capacity.

Simple brawn also offers far less advantage in our high-tech age. In modern warfare, brutal hand-to-hand combat is no longer the norm, and warfare is no longer a matter of sending out wave after wave of troops to overwhelm the enemy through sheer mass. Increasingly, modern warfare involves a mixture of high-tech skills and low-tech cultural knowledge rather than ‘fighting’ in the traditional sense.

In fact, if the next few decades are anything like the last, most military personnel will never see combat.”