July 8, 2024 Department of Defense announces results of Sentinel Nunn-McCurdy Review On Jan. 18, 2024, the Air Force notified Congress that the Sentinel program exceeded its baseline cost projections, resulting in a critical breach under the Nunn-McCurdy statute.
April 5, 2022 Air Force’s new intercontinental ballistic missile system has a name: Sentinel Secretary of the Air Force Frank Kendall approved the designation for the system that modernizes the ICBM leg of the Nation’s nuclear triad.