The Department of Defense (DoD) is the federal executive department responsible for coordinating and supervising all agencies and functions of the government relating to national security and the United States Armed Forces. Headquartered at the Pentagon, it oversees the Army, Navy, Air Force, Marine Corps, Space Force, and Coast Guard in wartime, managing global operations, strategic planning, and defense policy.
Defense Strategy and Oversight
The DoD shapes U.S. foreign policy alongside the National Security Council and State Department, focusing on nuclear deterrence by tracking nuclear threats, responding to them, and planning for nuclear scenarios. Congress provides oversight of the $1 trillion military budget, amid debates on whether it has lost control of wars.
Personnel and Support
Recruitment pathways include ROTC, service academies, and JROTC, with benefits like tuition assistance and TRICARE. Service members access mental health resources and chaplain services.
Procurement, Technology, and Modernization
Debates surround military spending and shipbuilding costs, with partnerships revitalizing industry. Innovations include cloud computing, hypersonics, drones, and JADC2 for digital warfare.
The United States Air Force carries out its mission to "Fly, Fight, and Win—airpower anytime,…
The United States Army is the largest branch of the U.S. military, tasked with land-based…
The Defense Health Agency (DHA) is the U.S. Department of Defense’s joint combat support agency…
View All →The Defense Logistics Agency (DLA) is the United States Department of Defense's primary logistics combat…
View All →The United States Marine Corps is a premier maritime land force branch of the U.S.…
The United States Navy is one of the world's most powerful maritime forces, responsible for…
The U.S. Space Force, established in 2019, is the newest branch of the United States…
America spends more on its military than the next nine countries combined. That's nearly two-fifths of the world's total defense…
The prospect of war between the United States and Iran represents one of the most dangerous flashpoints in modern foreign…
Military conflict with Iran would trigger one of the most complex planning operations in U.S. history. But the real work…
An Authorization for the Use of Military Force sounds like bureaucratic paperwork. But these little-known congressional resolutions have become the…
The U.S. Constitution doesn't hand war powers to one person. Instead, it creates what constitutional scholar Edward Corwin called an…
The United States hasn't drafted anyone since 1973, but the machinery remains ready. Nearly all American men between 18 and…
The United States military places a high value on the right of its service members to observe the tenets of…
The Pentagon buys weapons and equipment from private companies but it also partners with them in ways most Americans never…