A Missile Defense System Is Taking Shape in Alaska

Snow fences help keep drifts from piling up on the missile silos. Heat-sensing security devices that monitor the edges of this 800-acre installation are sometimes set off by wayward moose.

And the soldiers here, members of the 3-year-old 49th Missile Defense Battalion of the Alaska National Guard, were just selected to help field test for the Army the third generation of the Extended Cold Weather Clothing System, seven layers of synthetic meant to resist the brutal winds that rip past the snow-clad peaks of the Alaska Range.

Four years after President Bush ordered a limited missile defense system to be built and nearly a quarter century after Ronald Reagan first proposed the Strategic Defense Initiative, this sub-Arctic outpost, once a cold war training site and still a cold-weather training site, is where progress on the long-embattled missile system is perhaps most evident, military officials say.

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