Lawmakers have set a 2025 target for fielding an improved air- and missile defense capability on Guam to give the island 360-degree protection against advanced Chinese threats, a statutory provision -- once the fiscal year 2022 defense authorization bill is signed by the president -- that would set a new marker in the debate over whether, what and when to deploy on the Western Pacific U.S. territory. The legislation -- agreed to by Congress and awaiting enactment -- includes a...