The Energy Department plays an important and multifaceted role in protecting national security. In addition to our work to increase nuclear nonproliferation and ensure the security of the U.S. nuclear weapons stockpile, we manage the Strategic Petroleum Reserve, invest in protections against cyber and physical attacks on U.S. energy infrastructure, conduct programs to ensure worker health and safety, and provide training tools and procedures for emergency response and preparedness.
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In today’s highly interconnected world, reliable energy delivery requires cyber-resilient energy delivery systems. In fact, the nation’s security, economic prosperity, and the well-being our citizens depends on reliable energy infrastructure.May 5, 2026 -
Ensuring the reliability, resilience, and security of United States energy supply is a critical component of national security and essential to our daily way of life.May 5, 2026 -
Discover how the Department of Energy supports public health by addressing environmental, biological, and operational risks while advancing research and collaboration to protect communities and strengthen national resilience.April 20, 2026 -
The U.S. and our allies continue to face serious research, technology, and economic security (RTES) threats as some foreign governments work aggressively to acquire our most advanced technologies and dominate strategic supply chains.May 5, 2026