; and (2) the Committee on Armed Services and the Committee on Appropriations of the House of Representatives. 8. Preparations for possible deployment of additional intercontinental ballistic missiles (a) Activation plan Not later than 120 days after the date of the enactment of this Act, the Secretary of the Air Force, in coordination with the Under Secretary of Defense for Acquisition and Sustainment and the Commander of United States Strategic Command, shall develop a plan for deploying not more than 50 Sentinel intercontinental ballistic missiles in addition to the 400 Minuteman III intercontinental ballistic missiles currently deployed, during the planned life of the Sentinel intercontinental ballistic missile weapon system. (b) Alternative acquisition strategy In developing the plan required by subsection (a), the Secretary shall direct the Program Executive Officer for Intercontinental Ballistic Missiles to prepare an alternative acquisition strategy for the Sentinel intercontinental ballistic missile weapon system that accommodates the deployment of not more than 50 additional Sentinel intercontinental ballistic missiles, which shall include— (1) a plan to procure booster sets that will accommodate the deployment of at least 450 Sentinel intercontinental ballistic missiles during the planned life of the system and satisfy anticipated testing requirements; (2) a plan develop and to procure reentry vehicles necessary to support the planned life of the weapon system and satisfy anticipated testing requirements; (3) a plan develop and to procure countermeasures to support the deployment of at least 450 Sentinel intercontinental ballistic missiles during the planned life of the system and satisfy anticipated testing requirements; (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