Amend title 10, United States Code, to modify the organization and authorities of the Assistant Secretaries of Defense with duties relating to industrial base policy and homeland defense.

Summary

Creates a new Assistant Secretary of Defense focused on strengthening the U.S. defense industrial base through international cooperation with allies and partners (explicitly including Taiwan). It also reorganizes several Assistant Secretary positions: renames and expands the strategy office to include homeland defense duties, eliminates the separate Assistant Secretary for Homeland Defense and Hemispheric Affairs, and assigns Western Hemisphere responsibilities to the Assistant Secretary for International Security Affairs. The changes shift responsibilities across DoD civilian leadership to deepen industrial cooperation abroad, consolidate homeland defense and contingency planning authorities, and realign regional portfolios in the Office of the Secretary of Defense. The measure specifies that references to the renamed office take effect upon enactment; it does not specify funding levels.

• Creates an Assistant Secretary focused on international defense industrial base development and partner engagement, including Taiwan.
• Renames and expands the Strategy, Plans, and Capabilities office to add homeland defense and mission assurance duties.
• Eliminates the Assistant Secretary for Homeland Defense and Hemispheric Affairs position and shifts its duties.
• Assigns Western Hemisphere responsibilities to the Assistant Secretary for International Security Affairs.
• Specifies that references to the renamed office become effective upon enactment.
• Focuses the new industrial-base post under the Acquisition and Sustainment portfolio to strengthen supply chains and partner cooperation.
• Does not appropriate new funding or set specific implementation timelines in the text.
• Increases formal DoD emphasis on coordination with federal agencies, state/local/Tribal governments, private sector, and allies.