This bill requires the Secretary of Defense to collect and track data on how extreme weather and natural disasters affect military installations and their operating costs. The legislation directs the Under Secretary of Defense for Acquisition and Sustainment to expand existing data collection efforts to cover all types of natural disasters, not just extreme weather events. The bill affects all Department of Defense military installations across the country and aims to provide better information about the financial and operational impacts of climate-related threats. No specific funding amounts or timelines for implementation are specified in the legislation. The goal is to help the military better understand and prepare for the costs and challenges posed by extreme weather and natural disasters at its facilities.