A new Army study -- launched during the last weeks of the Trump administration and now subject to a review by the Biden administration -- aims to assess the ability of ground forces to operate on a radioactive battlefield as well as explore the prospects for a high-tech, networked force against a high-altitude, nuclear detonation. On Dec. 18, then-Army Secretary Ryan McCarthy directed the Army Science Board to conduct an "Independent Assessment of the Army's Ability to Fight and Win...