How Much Is Enough for National Defense?

$600 Billion Seems Reasonable

BILL ASTORE

APR 26, 2026

What is the right amount of money to spend on national defense?

It’s not an easy question because answers depend on goals. On commitments.

So, for example, I’m committed to the ideal of the American republic. That republic should focus on defense of the nation. I don’t support the American empire. I don’t favor an offensive military. I don’t believe defense is about global domination. Offense is enabled by full-spectrum dominance; defense doesn’t require it.

So much of what America spends on “defense” goes to weapons makers like Lockheed Martin, Boeing, and RTX. It’s advertised as military Keynesianism but it’s more like corporate welfare for what used to be called the merchants of death.

I don’t value weapons as “investments.” I see weapons as Ike saw them in 1953. They are a form of theft. They steal funding from schools, hospitals, libraries, fire stations, and other much-needed improvements to national services and infrastructure.

Yes, America has to defend itself, but an imperial military that is vastly overfunded is an albatross around the neck of a declining republic.

A wildly offensive military that seeks global dominance—the budget for that military is almost boundless. It’s not surprising, then, that this is the vision we’re sold. The idea that the U.S. military must be second to none and dominate everywhere at almost any cost. And what a cost!

An essential part of this imperial vision is that diplomacy is best done with bombs, as Pete Hegseth boasted. That diplomacy isn’t even needed, really, because as Trump says, America holds all the (military) cards. If countries like Iran keep resisting, threaten them with extermination.

A black hole for money

An imperial military of global dominance based on massively expensive weapons systems and exterminatory threats drives a “defense” budget of $1 trillion or more. Trump, of course, is asking for $1.5 trillion for FY2027, a staggering 50% increase. This insane vision of exterminatory war is enabled by colossal spending on Death Star-like weaponry.

Meanwhile, Members of Congress fight for their share of a rapidly expanding military procurement pie. Shrink the pie? Forget it! They only want their fair share of the pie (or the pork) for their district. Lobbyists from those imperial merchants of death ensure that Congress stays the military (and militarized) course.

To return to my question: Assuming we’re talking about national defense in a republic that believes in diplomacy and that isn’t forever seeking dragons overseas to slay, I’m guessing that roughly $600 billion a year would suffice for the Pentagon. That is still an enormous sum of money. That healthy amount assumes America can avoid fighting wars of choice and stop its various foolhardy military interventions across the globe.

Ten years ago, $600 billion was roughly the baseline for the Pentagon budget even as America was still in Afghanistan and waging a “global war on terror.” Sure, there’s been some inflation, a weakening of the dollar, but that ballpark figure seems reasonable for a military focused on true national defense rather than one based on total global dominance.

One axiom that should always rule: A republic should not spend one more dollar than necessary on military might. If $600 billion is too high, I’d be happy to see a lower amount.

One coda: No more money for the Pentagon until it’s able to pass an audit.

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