Small Wars Journal

‘Underground’ May Be the U.S. Military’s Next Warfighting Domain

‘Underground’ May Be the U.S. Military’s Next Warfighting Domain by Patrick Tucker - Defense One

The U.S. military is considering adding a new warfighting domain to U.S. military doctrine: the underground realm, said the director of the Defense Intelligence Agency.

“Subterranean is something we are going to have to contend with in the future. You look at the electrical systems…control systems, control grids,” Lt. Gen. Robert Ashley said Tuesday at the Defense One Technology Summit in Washington, D.C.

The underground sphere is particularly important in cities, where nearly two-thirds of the world’s population will live by 2040 — and where the Pentagon expects to see more combat.

The domains currently include land, sea, air, space, and cyber — the latter added in 2012. Adding another would reshape spending and strategy…

Read on.