Efforts to build air defense systems for Guam, American base 1300 miles east of the Philippines. China has stockpiled missiles that could reach Guam, says this report in the WSJ. There are 150,000 American civilians in Guam, which is an island the size of Chicago. As Guam is entirely American the US can operate from Guam in a manner that it cannot do from Okinawa or other bases in the Pacific, or in South Korea. About 50,000 Americans are based at Okinawa, Japan. US has 22,000 military personnel on Guam island. Guam played a critical role in the early days of the Pacific War with Japan and after it was retaken from the Japanese.
This is becoming important as the US faces the prospect of being able to help protect Taiwan's independence, and protect free navigation on seas in the Indo-Pacific region that extends from Africa to India and Australia and to western US.
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