Agencies

Deploy, fight, and win the nation's wars by providing ready, prompt, and sustained land dominance across the full range of military operations.

Maintain, train, and equip combat-ready naval forces capable of winning wars, deterring aggression, and maintaining freedom of the seas.

Fly, fight, and win — airpower anytime, anywhere — through the integrated capabilities of the Air Force and Space Force.

Provide fully capable special operations forces to defend the nation and its interests.

Safeguard the American people, our homeland, and our values — including border security, cyber defense, and disaster response.

Explore the unknown for the benefit of humanity through aeronautics research, space exploration, and Earth and space science.

Ensure America's security and prosperity by addressing energy, environmental, and nuclear challenges through transformative science and technology solutions.

Fulfill President Lincoln's promise to care for those who have served in our nation's military and for their families, caregivers, and survivors.

Provide the military forces needed to deter war and ensure the nation's security through integrated joint warfighting capabilities.

Secure the nation's interests in, from, and to space through resilient on-orbit infrastructure and space domain awareness.

Be the nation's force in readiness — a naval expeditionary force prepared for forward presence and crisis response.

Collect, analyze, and deliver foreign intelligence to give the President and senior policymakers a decision advantage.

Make pivotal investments in breakthrough technologies for national security — DARPA is DoD's high-risk, high-reward research arm.

Provide contract administration services for DoD acquisition entities, ensuring items delivered meet cost, quality, and delivery requirements.

Lead the Military Health System — deliver integrated, affordable, high-quality health services to military members, their families, and retirees.

Provide military intelligence to warfighters, defense policymakers, and force planners in DoD and the Intelligence Community.

Provide the joint warfighter with dependable, resilient, and secure IT infrastructure, communications, and computing capabilities that enable command-and-control from the strategic to tactical edge.

Provide the Army, Marine Corps, Navy, Air Force, Space Force, other federal agencies, and joint and allied forces with a full spectrum of logistics, acquisition, and technical services.

Enable DoD, the U.S. Government, and international partners to counter and deter weapons of mass destruction and improvised threat networks.

Enforce the law and defend the interests of the United States, ensure public safety against foreign and domestic threats, and provide federal leadership in preventing and controlling crime.

Deliver effective and efficient acquisition, real estate, and technology services to federal customers — powering the government's procurement enterprise.

Enhance the health and well-being of all Americans by providing for effective health and human services and fostering advances in medicine, public health, and social services.

Develop and deploy a layered missile defense system to defend the United States, deployed forces, allies, and friends against ballistic missiles of all ranges.

Deliver world-class geospatial intelligence that provides a decisive advantage to policymakers, warfighters, intelligence professionals, and first responders.

Lead the U.S. Government in cryptology that encompasses both signals intelligence (SIGINT) insights and cybersecurity products and services.

Advance U.S. national security, prosperity, and democratic values — the lead agency for U.S. foreign policy and diplomatic engagement.

Maintain a strong economy, promote conditions that enable growth and stability, and manage the U.S. Government's finances and resources effectively.

With partners, counter transnational threats and malign actors, strengthen security forces, and respond to crises to advance U.S. national interests and promote regional security, stability, and prosperity across Africa.

Direct and enable military operations and activities with allies and partners to increase regional security and stability in support of enduring U.S. interests across the Middle East and Central + South Asia.

Direct, synchronize, and coordinate cyberspace operations in defense of U.S. national interests — deter, defeat, and, when directed, conduct offensive cyberspace operations against adversaries.

Conduct military operations and security cooperation activities across Europe — deter Russian aggression, reassure NATO allies, and defend U.S. interests in the theater.

Deter aggression and, when necessary, defeat armed attack against the United States, our allies, and our partners in the Indo-Pacific region — the priority theater of operations.

Defend the homeland — protect the American people and our national interests through deterrence, forward defense, and support to civil authorities during domestic emergencies.

Together with partners, defend the southern approaches to the U.S. — building enduring partnerships, countering transnational threats, and providing humanitarian assistance across Latin America and the Caribbean.

Conduct operations in, from, and to space to deter conflict, and if necessary, defeat aggression, deliver space combat power for the joint / combined force, and defend U.S. vital interests with allies and partners.

Deter strategic attack and, if directed, employ forces to guarantee a decisive response to any adversary. Provide combat-ready forces to execute global strike, missile defense, and joint electromagnetic spectrum operations.

Project and sustain military power at a time and place of the nation's choosing — synchronize surface, air, and sea transportation worldwide to move forces and materiel wherever they're needed.

Conduct flight research + operations that advance aeronautics, science, and space exploration — from X-planes to hypersonic demonstrators and airborne science platforms.

Advance NASA missions through breakthrough science and technology in aeronautics, exploration, exoplanets, and information technology — including NASA's advanced supercomputing facility.

Lead the nation's medical + public-health preparedness for, response to, and recovery from disasters and public-health emergencies — home of BARDA and the Strategic National Stockpile.

Protect America from health, safety, and security threats — from disease outbreaks and chronic diseases through environmental hazards and terrorism.

Advance health equity, expand coverage, and improve health outcomes — administering the Medicare, Medicaid, CHIP, and Marketplace programs that cover more than 150 million Americans.

Serve as the nation's leading provider of quality data about its people and economy — the decennial census, American Community Survey, and 100+ economic + demographic surveys.

Promote job creation and economic growth by ensuring fair and secure trade, providing economic + statistical analysis, formulating economic and trade policy, promoting U.S. exports, and safeguarding sensitive technology through export controls.

Protect + promote public health through regulation of food, drugs, biologics, medical devices, tobacco, and cosmetics — plus support the science underpinning them.

Develop innovative aeronautics + space propulsion and power systems — from advanced turbine engines through solar electric propulsion for deep-space missions.

Develop and operate uncrewed scientific spacecraft — Earth science, heliophysics, planetary + astrophysics missions, and the communications + tracking networks that support them.

Improve health outcomes and address health disparities by supporting quality health care providers, expanding services in medically underserved communities, and building the health workforce.

Robotic exploration of the solar system + development of the deep space communications infrastructure that connects Earth to every robotic mission — NASA's premier planetary science center.

Lead human exploration of space — International Space Station operations, Orion spacecraft, Gateway lunar outpost, and Artemis human-landing systems + astronaut office.

Prepare and launch NASA spacecraft — steward the multi-user spaceport enabling Artemis, commercial crew and cargo, and science mission launches.

Advance aeronautics, atmospheric science, and exploration systems engineering — the historic home of X-plane research and entry / descent / landing science for Mars.

Deliver NASA's transportation systems, in-space propulsion, and systems engineering for human + robotic exploration missions — historic home of the Saturn V + Space Shuttle Main Engine.

Seek fundamental knowledge about the nature and behavior of living systems and the application of that knowledge to enhance health, lengthen life, and reduce illness and disability.

Promote U.S. innovation and industrial competitiveness by advancing measurement science, standards, and technology in ways that enhance economic security and quality of life.

Understand and predict changes in the Earth's environment — from the depths of the ocean to the surface of the sun — and conserve and manage coastal and marine resources.

Advance policies to connect Americans through better, faster, and safer internet — steward federal spectrum use and drive broadband investment nationwide.

Test large-scale rocket propulsion systems for NASA and commercial partners — the nation's largest rocket propulsion test complex.

Protect the public from violent crime, the illegal use of firearms, the illegal use and storage of explosives, arson, and the diversion of alcohol and tobacco products.

Promote the financial integrity + operational efficiency of the federal government through exceptional accounting, financing, collections, payments, and shared services.

Protect society by confining offenders in the controlled environments of prisons and community-based facilities that are safe, humane, cost-efficient, and appropriately secure, and that provide work and self-improvement opportunities.

Enforce controlled substances laws and regulations of the United States and bring to the criminal + civil justice system those involved in the growing, manufacture, or distribution of controlled substances.

Protect the American people and uphold the Constitution of the United States — through counterintelligence, counterterrorism, cybercrime, criminal investigations, and intelligence support to U.S. national-security partners.

Safeguard the financial system from illicit use, combat money laundering + terrorism financing, and promote national security through the collection, analysis, and dissemination of financial intelligence.

Provide America's taxpayers top-quality service by helping them understand and meet their tax responsibilities and enforce the law with integrity and fairness to all.

Honor veterans and their families with final resting places in national shrines and with lasting tributes that commemorate their service and sacrifice to our nation.

Ensure that national banks and federal savings associations operate in a safe and sound manner, provide fair access to financial services, treat customers fairly, and comply with applicable laws and regulations.

Administer and enforce economic and trade sanctions based on U.S. foreign policy and national security goals against targeted foreign countries, terrorists, international narcotics traffickers, and others engaged in activities threatening national security.

Ensure the effective operation of the federal judicial system and protect the integrity of the federal judiciary — protecting federal judicial officials, apprehending fugitives, transporting federal prisoners, protecting witnesses, and seizing assets acquired by criminals.

Provide compensation, pension, education, home-loan, insurance, and vocational-rehabilitation benefits to eligible veterans and their families in a timely and accurate manner.

Provide personalized, proactive, patient-driven health care to eligible veterans — the nation's largest integrated health-care system.

Safeguard America's borders — protecting the public from dangerous people and materials while enhancing the nation's economic prosperity through legitimate trade and travel.

Lead the national effort to understand, manage, and reduce risk to our cyber and physical infrastructure — the nation's cyber defense agency and coordinator for critical-infrastructure security.

Help people before, during, and after disasters — build a culture of preparedness, ready the nation for catastrophic disasters, and reduce the complexity of FEMA.

Enforce federal laws governing border control, customs, trade, and immigration to promote homeland security and public safety — Homeland Security Investigations (HSI) and Enforcement + Removal Operations (ERO).

Protect the nation's transportation systems to ensure freedom of movement for people and commerce — screening 2.5+ million air travelers daily plus surface transportation modes.

Ensure the safety, security, and stewardship of the nation's waters — from search + rescue and port security through drug interdiction and Arctic operations. One of the six armed services.

Administer the nation's lawful immigration system, safeguarding its integrity and promise by efficiently and fairly adjudicating requests for immigration benefits.

Ensure the safety of the President, Vice President, foreign heads of state visiting the U.S., and other protectees — and investigate crimes against the nation's financial infrastructure.