US satellites would slash cost of Japan defensive strike: expert

Annual outlay estimated at half of Aegis Ashore as Tokyo weighs alternatives

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An illustration of an U.S. defense communications satellite. (Photo courtesy of U.S. Air Force)

DAISHI ABE, Nikkei staff writer

TOKYO -- Japan can dramatically reduce the cost of developing the capability to strike enemy missile bases before an imminent attack if it uses the U.S. military's satellite-based early warning system, an analysis by a professor at the National Defense Academy shows.

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