NATIONAL HARBOR, Md. — United Launch Alliance is preparing to return its Vulcan rocket to flight with an Amazon Leo mission, but the Space Force will require a separate review before allowing the rocket to resume national security launches, a senior service acquisition official said Sept. 16.

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Sandra Erwin writes about military space programs, policy, technology and the industry that supports this sector. She has covered the military, the Pentagon, Congress and the defense industry for nearly two decades as editor of NDIA’s National Defense...