This report is the Department’s inaugural enterprise-wide greenhouse gas (GHG) emissions reduction plan and describes strategies for both military installations and operations. The Department’s focus is to enhance capability and lethality while increasing the readiness and resilience of the force. Initiatives that reduce GHG emissions can also create warfighting advantage. For example, improving efficiency and deploying clean distributed generation and storage can strengthen the resilience of critical missions housed on military installations in the face of extreme weather, cyber attacks, and even kinetic attacks impacting electric grids. Improving the efficiency of combat platforms and operations can enable freedom of maneuver and mitigate risk, while increasing operational reach and endurance in contested logistics environments.