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" Details of the Trump administration's ambitious Golden Dome plan are starting to come to light, with defense contractors eager to grab a piece of the action. The proposed defense shield will reportedly consist of four integrated layers, one space-based and three on land, and 11 short-range missile batteries.

Dig deeper: The details, as reported by Reuters, were included in U.S. government presentation titled "Go Fast, Think Big!" that was shown to 3,000 contractors at an event in Alabama last week. The Golden Dome's space-based sensing and targeting layer would be for missile warning and tracking as well as missile defense. The other three layers would be land-based, consisting of missile interceptors, radar arrays, and potentially lasers.

The presentation mentioned a new large missile field, possibly in the Midwest, for Next Generation Interceptors made by Lockheed Martin (LMT). The new proposed site would be part of the Golden Dome's "upper layer," alongside Terminal High Altitude Area Defense (THAAD) Aegis systems made by Lockheed. The last lines of defense - the "under layer" and "Limited Area Defense" - would include new radars, current systems like the Patriot, and a new "common" interceptor launcher.

Looking ahead: President Donald Trump wants the Golden Dome to be operational by January 2029, although critics are skeptical of the timeline given the project's scale. The project draws inspiration from Israel's Iron Dome, but would be significantly bigger given the geography it would need to cover. It remains unclear how many launchers, interceptors, and ground stations would be needed for the system. The Trump administration said the project would likely cost $175B, but the Congressional Budget Office said the price tag could go up to $542B."