Rec. 1.b.1: The DoD OIG recommended that the Under Secretary of Defense for Policy, in coordination with the Under Secretary of Defense for Acquisition and Sustainment, provide recommendations to the Secretary of Defense, in accordance with DoD Directive 5100.01, to identify the policy goals, priorities, and objectives of U.S. sustainment support for weapon systems provided by the DoD to the Ukrainian Armed Forces. The recommendations to the Secretary of Defense should, at a minimum, assign roles and responsibilities to develop and implement a sustainment plan consistent with the needs of each weapon system identified in the life cycle sustainment plans. The roles and responsibilities should designate a DoD Component with the authority to direct the relevant geographic combatant commands to provide necessary information and data on sustainment requirements for weapon systems, including Bradley, Stryker, and Abrams armored weapon systems, based on Ukraine's needs and U.S. experience in fielding those systems.