Preconditions for Defense (PD)
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- PDs are NCA pre-approved criteria, authorities, and procedures that delineate circumstances under which USCINCSPACE BMD forces will initiate or continue combat engagements and operations against hostile ballistic missile attacks directed at the United States, its Allies, or U.S. interests during peace, crisis, and war.
DoD Missile Defense Agency - Cite This Source - This Definition - AEGIS BMD, Ballistic Missile Defense Battery, Battle Plan, Defended area coverage Defended Asset List (DAL), Engagement, Hostile Environment, Integrated Tactical Warning and Attack Assessment (ITW/AA), Missile Defense Warning Condition, Missile Warning Center (MWC), National Warning Center (NWC)