**GAO-08-523T**                      Published: Mar 13, 2008. Publicly Released: Mar 13, 2008.                  

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## Highlights

The Department of Defense (DOD) is the single largest U.S. energy consumer. About three-fourths of its total consumption consists of mobility energy--the energy required for moving and sustaining its forces and weapons platforms for military operations. GAO was asked to discuss DOD's efforts to manage and reduce its mobility energy demand. This testimony addresses (1) energy issues that are likely to affect DOD in the future, (2) key departmental and military service efforts to reduce demand for mobility energy, and (3) DOD's management approach to guide and oversee these efforts. This testimony is based primarily on work conducted for a report that GAO issued today (GAO-08-426) on DOD's management of mobility energy.

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## Topics

National Defense

Alternative energy sourcesAlternative fuelsDefense capabilitiesEnergy conservationEnergy consumptionEnergy demandEnergy managementEnergy planningFuel conservationFuel consumptionLogisticsMilitary forcesMilitary operationsMilitary research and developmentPerformance measuresPetroleum productsProgram evaluationStrategic planningWeaponsWeapons systemsEnergy sourcesPolicies and proceduresProgram goals or objectivesProgram implementationStandards (energy efficiency)