Why the Defense Budget Keeps Growing Without Asking the Generals
The United States will spend roughly $850 billion on national defense in fiscal year 2026 if Congress has its way, yet much of that money is not going to the priorities set by uniformed leaders and is instead flowing to programs that lawmakers inserted despite Pentagon opposition.
That distinction matters for anyone who believes limited government applies even to the military. The problem is older than the current Congress, but it is getting worse. Every year, the House and Senate add earmarks and directed spending to the defense authorization bill. Some of these items fund useful things. Many do not. The Government Accountability Office found $236 billion in improper payments government-wide in fiscal year 2023, and the Pentagon's slice of that waste is notorious. When politicians treat the defense budget as a jobs program, readiness suffers.
The Department of Defense has also failed to pass a clean audit for seven consecutive years. The most recent failure came in November 2024. Auditors could not account for vast quantities of equipment, spare parts, and real estate. A private corporation with books this sloppy would face shareholder lawsuits. Congress instead rewards the Pentagon with larger budgets and new weapons the services never requested.
This is not a defense strategy. It is a spending strategy. And it is funded by borrowing that future generations will be forced to repay.
The F-35, the Columbia Class, and the Price of Political Meddling
Nothing illustrates the problem better than the F-35 Lightning II, because the Government Accountability Office estimated in 2023 that the program will cost $1.7 trillion over its 66-year life cycle, a figure that includes development, procurement, and sustainment for a fighter jet that remains plagued by delays.
The services continue to buy it partly because the industrial base is now built around it, not because it is clearly the best use of each dollar. The Columbia-class ballistic missile submarine program offers another example. The Congressional Budget Office and the Navy have projected the total program cost at roughly $132 billion. These submarines are essential to the nuclear deterrent. But the same political class that demands them also refuses to make the trade-offs required to pay for them honestly. The result is more debt, more taxes, or both.
Then there are the smaller indignities. Aircraft the Air Force wants to retire are kept alive by legislators protecting jobs in their districts. Bases the military believes are redundant survive because closure commissions have become politically radioactive. Ships that admirals argue are ill-suited to modern warfare keep getting funded because shipyards employ voters. Each decision is understandable in isolation. Together they produce a force that is expensive and not always prepared.
Constitutional conservatives should object. The Founders gave Congress the power of the purse precisely so elected representatives could restrain executive ambition. They did not intend that power to become a mechanism for converting taxpayer money into local patronage. When lawmakers override military judgment to protect contractors, they are not defending the nation. They are defending incumbency.
Debt Interest Is the Real Defense Budget
The most alarming number in federal finance is not the defense top line, because the interest bill is now larger, and the Congressional Budget Office reported that net interest on the national debt reached $892 billion in fiscal year 2024, surpassing defense outlays of $841 billion. By the time fiscal year 2026 ends, that gap will almost certainly be larger. Treasury borrowing has pushed the debt past $36.2 trillion, and servicing it now consumes more revenue than the entire Pentagon appropriation.
That matters for national security. Every dollar spent on interest is a dollar not spent on training, maintenance, research, or alliances. It is also a dollar extracted from the private economy through taxation or inflation. A country that cannot balance its books cannot sustain a global military posture indefinitely. Empires have collapsed from fiscal exhaustion before they collapsed on the battlefield.
The libertarian critique is not that defense is unnecessary. It is that defense spending should be subject to the same scrutiny as every other federal program. The Pentagon should be able to explain where its money goes. Congress should be able to say no to projects the military does not want. And the public should understand that endless borrowing is not free. It is a tax on the future dressed up as a gift to the present.
Real liberty requires limited government, and limited government requires discipline even in areas conservatives reflexively support. The men and women in uniform deserve the best equipment, clear missions, and honest budgets. What they do not deserve is to serve as political cover for a spending binge that weakens the country they are sworn to protect.
Congress should fund the force the nation actually needs, not the one lobbyists want. It should demand a clean audit before the next budget increase. And it should recognize that a superpower drowning in debt is not a superpower for long. National defense begins with fiscal defense.
