Uhhh, who knew that the DoD (or at least the authors) believe we will be moving into subterranean megacities?
>"Future battlefields in 2050 are projected to be dense, urban environments or
subterranean megacities that will challenge identification and tracking of targets." p.g. 16
>"Future battlefields in 2050 are projected to be dense, urban environments or subterranean megacities that will challenge identification and tracking of targets." p.g. 16