; and (2) in subsection (c)(1), by striking propose and implement and inserting submit to the Assistant Secretary concerned a proposal on, and implement, . 233. Requirement for a plan to build a prototype for a new ground combat vehicle for the Army (a) In general Not later than 90 days after the date of the enactment of this Act, the Secretary of the Army shall submit to the congressional defense committees a plan to build a prototype for a new ground combat vehicle for the Army. (b) Contents The plan required by subsection (a) shall include the following: (1) A description of how the Secretary intends to exploit the latest enabling component technologies that have the potential to dramatically change basic combat vehicle design and improve lethality, protection, mobility, range, and sustainment, including an analysis of capabilities of the most advanced foreign ground combat vehicles and whether any have characteristics that should inform the development of the Army's prototype vehicle, including whether any United States allies or partners have advanced capabilities that could be directly incorporated in the prototype. (2) The schedule, cost, key milestones, and leadership plan to rapidly design and build the prototype ground combat vehicle. 234. Plan for successfully fielding the Integrated Air and Missile Defense Battle Command System (a) Plan required Not later than 180 days after the date of the enactment of this Act, the Secretary of the Army shall submit to the congressional defense committees a plan to successfully field a suitable, survivable, and effective Integrated Air and Missile Defense Battle Command System program. (b) Limitation None of the funds authorized to be appropriated by this Act for research, development, test, and evaluation may be obligated by the Secretary of the Army for the Army Integrated Air and Missile Defense and the Integrated Air and Missile Defense Battle Command System until the date on which the plan is submitted under subsection (a). 235. Sense of Congress on hypersonic