; (4) a plan to procure ground support and maintenance equipment to support the deployment of at least 450 Sentinel intercontinental ballistic missiles during the planned life of the system; and (5) recommendations for adjustments to the baseline acquisition strategy as the Program Executive Officer determines necessary to achieve the plan required by subsection (a). (c) Report required Not later than 30 days after the development of the plan required by subsection (a), the Secretary of the Air Force shall submit to the congressional defense committees a report containing a summary of the plan and initial acquisition cost estimates and timelines for executing the plan. (d) Congressional defense committees defined In this section, the term congressional defense committees means— (1) the Committee on Armed Services and the Committee on Appropriations of the Senate