1. Short title This Act may be cited as the Military Support for Fighting Wildfires Act of 2023 . 2. Requirement of Secretary of Defense to reimburse State costs of fighting certain wildland fires Section 2691(d) of title 10, United States Code, is amended by striking may and inserting shall . 3. Authorization for FireGuard Program (a) Authority Chapter 5 of title 32, United States Code, is amended by adding at the end the following new section: 510. Authorization for FireGuard Program (a) Authorization The Secretary of Defense may use members of the National Guard to carry out a program to aggregate, analyze, and assess multi-source remote sensing information for interagency partnerships in the detection and monitoring of wildfires, and to support any emergency response to such wildfires. Such a program shall be known as the FireGuard Program . (b) Resources; limitation If the Secretary carries out a program under this section, the Secretary— (1) shall transfer the functions, personnel, assets, and capabilities of the FireGuard Program, in existence on the day before the date of enactment of the Military Support for Fighting Wildfires Act of 2023 , to the FireGuard Program authorized under this section; (2) may direct the Director of the National Geospatial-Intelligence Agency to provide such assistance as the Secretary determines necessary to carry out the FireGuard Program