Air Force Opens Public Review Period on Revised Sentinel Plans in Montana

Great Falls, MT, October 13, 2026 —

The U.S. Air Force has opened a 30-day public scoping period to gather input on revised plans to deploy the Sentinel missile system in Montana. The input will inform a supplemental environmental review of the new approach.

The review is intended to address cost and schedule risks associated with the revised plans, which could involve acquiring land and building new launch silo sites near Malmstrom Air Force Base. The summary of the plans does not specify how much land might be acquired or how many silo sites could be built.

The scoping period provides an opportunity for public input as the Air Force considers the environmental review. The information provided does not state when the 30-day period began or when it will end. It also does not detail how the public can submit comments or identify specific locations under consideration.

The revised plans are the subject of a supplemental review, but no findings from that review were provided. The summary does not give estimated costs, schedule changes, or details about how the new approach differs from earlier deployment plans. It also does not say whether land acquisition or construction has been approved or begun.

For now, the stated scope is limited to gathering input and reviewing the revised approach, including possible land acquisition and new silo construction near the base. Further details about the review’s schedule, potential sites and outcomes were not provided.

Story summarized from the original created by Madison Collier on www.krtv.com, see more information here.

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