The D Brief: Space Force’s new war plan; Musk, Palantir, Anduril eye ‘Golden Dome’ contracts; DOD’s race for small reactors; And a bit more.

Space warfare gets a formal definition thanks to a new strategic document. The U.S. Space Force released “Space Warfighting - A Framework for Planners,” which outlines possible offensive and defensive actions, respectively, such as destroying an adversary’s satellites or “escorting” satellites to protect them, Defense One’s Audrey Decker reports. The goal is to give officials a clear idea of how the Space Force, which has previously avoided publicly discussing