How a fleet might disrupt a hypersonic missile attack

Is there any defense against hypersonic missiles?

Possible defenses include decoys, concentrated gunfire, future railguns or counter-missiles, and lasers that force the weapon off course, but no single answer is presented as certain.

Hypersonic defense remains an unsettled problem. Chaff and other decoys may confuse targeting, while a dense wall of defensive gunfire could exploit the limited maneuverability of a weapon moving at extreme speed. Railguns and counter-hypersonic weapons are described as future possibilities. A laser might instead heat the air or damage control surfaces enough to deflect the missile, making a miss more important than complete destruction.