The United States needs resilient space-based sensing capabilities for global detection, tracking and custody of advanced ballistic and hypersonic missile threats. These capabilities must integrate into the missile defense kill chain with existing space-based and terrestrial sensing, command and control, and effectors to enable early and effective engagement of these threats.

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Brian Berger is editor in chief of SpaceNews.com and the SpaceNews magazine. He joined SpaceNews.com in 1998, spending his first decade with the publication covering NASA. He was named senior staff writer in 2004, a position he held until being named...