The Pentagon Budget
The United States spends more on its military than the next ten countries combined — and has failed every financial audit it has ever attempted, meaning no one can fully account for where the money goes.
The short version
- The FY2024 defense budget totaled approximately $886 billion — more than the combined defense spending of China, Russia, India, Saudi Arabia, the United Kingdom, Germany, France, South Korea, Japan, and Ukraine.
- The Pentagon has failed its own financial audit six consecutive times since it was first required to conduct one in 2018 — the only major federal agency that cannot pass an audit — meaning the government cannot fully account for how it spends hundreds of billions of dollars annually.
- The official defense budget understates actual national security spending: when Veterans Affairs, the nuclear weapons programs administered by the Department of Energy, intelligence community funding, and interest on debt from past wars are included, total national security spending exceeds $1.4 trillion annually.
- The Base Realignment and Closure (BRAC) process for closing unneeded military facilities has been frozen since 2005, because every base represents local jobs no member of Congress is willing to eliminate — leaving the Pentagon paying to maintain infrastructure it does not need.
What it is
The annual defense budget process begins with the Pentagon submitting a request to the Office of Management and Budget, which incorporates it into the president's overall budget proposal to Congress. The House Armed Services Committee and the Senate Armed Services Committee then each produce versions of the National Defense Authorization Act (NDAA), which authorizes programs and sets policy, while the Appropriations Committees produce the actual spending bills. The NDAA has passed every year for 63 consecutive years — a legislative record rivaled by almost nothing else — in part because it serves the institutional interests of both the armed services and the congressional districts that host their facilities. The budget consists of several major categories: Operations and Maintenance (the largest, covering day-to-day costs of running the force), Military Personnel (salaries, benefits, retirement), Procurement (buying new weapons and equipment), Research, Development, Test and Evaluation (RDT&E), and Military Construction. Understanding what money is actually spent on requires navigating this structure alongside a parallel universe of supplemental appropriations, Overseas Contingency Operations accounts, and classified programs.
The gap between the official defense budget and actual national security spending is significant and rarely discussed in public debate. The $886 billion FY2024 defense topline covers the Department of Defense but not all national security costs. The Department of Energy administers the nuclear weapons stockpile through the National Nuclear Security Administration — approximately $24 billion in FY2024. The Department of Veterans Affairs budget exceeded $300 billion in FY2024, covering the long-term medical and disability costs of prior military service. The intelligence community's classified budget — the National Intelligence Program and the Military Intelligence Program — has been disclosed at approximately $90 billion annually in recent years. Interest on debt accumulated from the wars in Afghanistan and Iraq, estimated by the Costs of War Project at $2.2 trillion in borrowing, continues accruing. Adding these components produces a total national security expenditure substantially above $1.4 trillion annually — a figure that receives almost no political debate.
The Pentagon's procurement system has a well-documented tendency to produce weapons programs that exceed their initial cost estimates, deliver less capability than promised, and arrive years or decades late. The Government Accountability Office's annual assessment of major defense acquisition programs has documented persistent cost growth across the portfolio: programs routinely enter production based on optimistic cost projections, encounter technical problems and requirement changes mid-development, and complete at two to three times their original budgeted cost. The F-35, the KC-46 aerial refueling tanker, the Littoral Combat Ship, the Ford-class aircraft carrier, and the Expeditionary Fighting Vehicle represent a partial list of programs that exceeded cost estimates by billions of dollars while delivering reduced capability. The incentive structure explains the pattern: contractors submit low bids to win competitions, knowing that once a program is underway, the government's investment makes cancellation politically and economically costly — a dynamic called 'buying in' that the acquisition system has repeatedly attempted and failed to address.
The nuclear modernization program represents a commitment that will shape the defense budget for a generation. The United States is simultaneously replacing all three legs of its nuclear triad: the Columbia-class submarine to replace the Ohio-class at approximately $128 billion; the B-21 Raider bomber to replace the B-2; and the Sentinel ICBM to replace the Minuteman III, a program that has already experienced cost growth of more than 80 percent from its baseline estimate, triggering a statutory review. The Congressional Budget Office has estimated the total cost of nuclear force modernization at approximately $1.7 trillion over 30 years — a commitment made with minimal public debate. These programs will consume an increasing share of the defense budget through the 2030s and 2040s, crowding out spending on conventional forces, readiness, and personnel — a dynamic that defense analysts describe as a 'procurement holiday' that future budgets will need to address.
Why it matters
The Pentagon's audit failure is more consequential than its annual repetition in news reports suggests. Since 2018, the Department of Defense has been legally required to conduct an annual financial audit — a requirement every other federal agency meets. The Pentagon has failed every year. The 2023 audit found approximately $3.8 billion in assets that could not be located or verified. Auditors could not track the location of equipment. Property records were inaccurate. Financial systems did not communicate with each other. The significance is not primarily fiduciary — it is accountability. A department that cannot account for its assets cannot reliably tell Congress, the public, or its own leadership what it owns, what it has spent, or whether its reported financial position reflects reality. Contracts, grants, and payments that disappear into an unaudited system cannot be subjected to the oversight that is the basic mechanism of democratic control over public funds.
The geographic distribution of defense spending creates a structural political lobby for high defense budgets that operates entirely through the normal incentive structure of electoral politics — no corruption required. The Stockholm International Peace Research Institute estimates that defense spending supports more than 2 million jobs in the United States, spread across all 50 states through a contracting system that deliberately places sub-contracts in as many districts as possible. When a major weapons program is proposed for termination, the contractor publishes an economic impact map showing the states and districts where its spending flows. Members of Congress from affected districts — regardless of party affiliation — organize against the cut. The pattern is so reliable that it has become standard contractor strategy: before a program faces congressional scrutiny, ensure that its economic footprint extends across enough districts to make termination politically costly. This is not lobbying in the conventional sense; it is leveraging the basic representative incentive of every elected official.
The sequestration episode of 2013 provided a rare natural experiment in what happens when defense spending is cut involuntarily. The Budget Control Act of 2011 established automatic spending cuts — sequestration — that took effect when Congress failed to reach a deficit reduction agreement. Defense discretionary spending was cut by approximately $37 billion in FY2013. The military services reported reduced training, maintenance delays, and readiness shortfalls. What the sequestration episode also revealed was that the military had significant inefficiency and overhead that could absorb cuts without catastrophic operational consequences — a revelation that made subsequent budget negotiations easier for those seeking to protect the defense topline, since the services could credibly describe any reduction as catastrophic by pointing to 2013. The episode demonstrated both that the military has slack and that it has the institutional capacity to characterize any cut in the worst possible terms.
The comparison of U.S. defense spending to geopolitical competitors requires context that is rarely provided in public debate. China's official defense budget for 2024 was approximately $225 billion — a significant number in absolute terms, but representing a much lower cost per equivalent capability because Chinese military wages, construction costs, and procurement prices are substantially lower than American equivalents. The SIPRI Military Expenditure Database estimates that in purchasing power parity terms, Chinese defense spending is closer to 60–70% of American spending. The point is not that Chinese military power equals American military power — it does not — but that the comparison routinely used to justify American defense budgets ('we must outspend China') conflates dollar amounts with capabilities in ways that obscure more than they reveal. The more honest framing is that the United States has chosen to maintain a global military presence, with forward-deployed forces on every continent and in every ocean, that China, with a primarily regional posture, is not attempting to match. Whether that global presence is worth its cost is a question that rarely enters the appropriations debate.