US Military Budget 2026: World's Largest Defense Spending

America’s military budget is so large that it breaks the usual ways we talk about money. It is bigger than the next several countries combined. It is more than a third of everything the world spends on its armed forces. And in 2026, it is about to cross a line no country has ever crossed before: one trillion dollars in a single year.

I find the numbers hard to grasp until they are put next to something familiar. The United States spent 954 billion dollars on its military in 2025, according to the Stockholm International Peace Research Institute, or SIPRI. That is roughly 2,600 dollars for every person in the country, or about 2.6 billion dollars every single day. This is the story of how big that budget really is, where the money goes, and why the world is watching what Washington spends next.

The headline number: 954 billion dollars

The most authoritative figure we have comes from SIPRI, the Sweden-based institute that has tracked military spending for decades. In its report on trends in world military expenditure in 2025, SIPRI put United States military spending at 954 billion dollars. That was 7.5 percent lower than in 2024, but it was still 11 percent higher than in 2016, and it still accounted for about a third of all military spending on Earth.

The drop needs explaining, because it does not mean America disarmed. The decline was mainly due to a sharp reduction in financial military assistance overseas, particularly for Ukraine. In previous years, that aid had come from supplemental funding beyond the Pentagon’s initial budget, and Congress approved a cumulative 127 billion dollars of it over three years. In 2025, no new supplemental appropriations were passed, so the counted spending fell. The underlying Pentagon budget did not shrink in the same way.

By another measure, the Department of Defense budget for fiscal year 2026 is about 895 billion dollars. Add in nuclear weapons spending at the Department of Energy, veterans’ benefits, and homeland security, and total national security spending climbs well above 1.1 trillion dollars. The gap between those two numbers is a reminder that the military budget is not one number but several, depending on what you count.

America versus the rest of the world

The global total helps put the American figure in perspective. World military spending reached a record 2.887 trillion dollars in 2025, according to SIPRI, rising 2.9 percent in real terms for the eleventh consecutive year. That is equal to 2.5 percent of the entire world’s economic output, or about 352 dollars for every person on the planet.

The United States, at 954 billion dollars, spent more than the next six countries combined. China, the second-largest spender, spent an estimated 336 billion dollars in 2025, up 7.4 percent. Russia spent about 190 billion dollars, Germany about 114 billion, and India about 92.1 billion. The top five spenders together accounted for 58 percent of world military spending, and the top fifteen accounted for 80 percent, or 2,304 billion dollars.

The share of the economy matters as much as the raw total. United States military spending equaled about 3.12 percent of GDP in 2025, and about 8.3 percent of government spending. Compare that with Ukraine, where military spending reached about 40 percent of GDP, the highest burden in the world, funded in part by more than 100 billion dollars in Western military assistance. Or compare it with China, whose official figure is widely treated as an undercount, since it leaves out paramilitary forces, research and development, space programs, and veterans’ affairs that other countries include.

Where the money goes

A military budget is not a single pile of cash. It pays for people first: about 1.33 million active-duty troops, plus reservists, and the salaries, housing, health care, and retirement of everyone who serves. It pays for operations and maintenance, the day-to-day cost of keeping bases open, ships at sea, and aircraft flying. It pays for procurement, the ships, planes, tanks, and missiles themselves. And it pays for research and development, the technology that is supposed to keep America ahead of its rivals.

The biggest single items are the ones that make headlines. Aircraft carriers cost billions of dollars each and take years to build. A single class of submarines can cost tens of billions. The F-35 fighter program is the most expensive weapons program in history. The nuclear arsenal, maintained by the Department of Energy, is a separate bill that runs into tens of billions a year. And the newest frontier, space, is now a formal military domain, with the Space Force continuing operational launches and, according to some reports, plans to place a nuclear reactor on the moon by 2030.

The nine nuclear-armed states together possess a combined inventory of 12,187 nuclear warheads as of January 2026, according to SIPRI’s Yearbook 2026. The United States holds a large share of that total, and the cost of maintaining and modernizing the arsenal is one of the budget items that rarely gets debated in public, even though it runs for decades.

The 2026 budget: crossing one trillion

If 2025 was a year of decline on paper, 2026 looks like a year of sharp increase. SIPRI’s researchers have been blunt about the outlook: the decline in United States military expenditure in 2025 is likely to be short-lived. Congress has already approved more than one trillion dollars for 2026, and spending could rise further to 1.5 trillion dollars in 2027 if President Donald Trump’s latest budget proposal is accepted.

That would make the United States the first country in history to spend more than a trillion dollars on its military in a single year, at least by the broadest measures. The Pentagon’s own request points in the same direction, with a focus on the Indo-Pacific, on missile defense, on shipbuilding, and on artificial intelligence and cyber capabilities. The shift reflects a strategic pivot: after two decades focused on the Middle East, American defense planning is now centered on deterring China, and that kind of deterrence is expensive.

America’s allies are spending more too. Europe saw the largest annual increase in defense spending since the Cold War, and in June 2025 NATO members set a target of spending 5 percent of GDP on defense by 2035, up from the 2 percent target agreed in 2014. Europe spent 864 billion dollars on defense in 2025, and according to SIPRI, it was the main contributor to the wider global surge in spending.

What the money buys, and what it does not

A retired Army colonel and senior historian, speaking to reporters about the latest rankings, offered a caution that is worth remembering: a country’s spending on paper does not automatically translate into battlefield capability. Money buys equipment, but it does not buy training, leadership, or the ability to keep complex systems working in the field.

There is also the question of what a trillion dollars does not buy. The United States spends far more on its military than on diplomacy, foreign aid, or many domestic programs, and critics argue that the imbalance is itself a security problem. Supporters argue the opposite: that the scale of American power is what keeps the peace, that allies rely on it, and that the cost of a major war would dwarf the cost of deterrence.

Both sides can point to evidence. The American military is ranked first in the world by Global Firepower in 2026, with more than 13,000 military aircraft, more than 4,600 tanks, and a navy that operates around the globe. No other country can move troops and equipment across oceans the way the United States can. At the same time, the Pentagon has failed repeated audits, and cost overruns on major weapons programs are a regular feature of defense reporting.

Why the world is watching

The world watches America’s military budget because it sets the pace for everyone else. When Washington spends more, rivals spend more, and allies spend more, and the global total keeps climbing. Eleven consecutive years of growth in world military spending is not a coincidence; it is a cycle, and the United States is the largest wheel in it.

For Americans, the budget is also a question about priorities. At 3.12 percent of GDP, military spending is far below the peaks of the Cold War or the Second World War, when it consumed a much larger share of the economy. But in absolute dollars, it has never been bigger. The debate in Washington is not really about whether America should have a strong military. Almost no one argues that. It is about how much strength is enough, what kind of strength matters most, and what else the country could do with a trillion dollars.

Those questions will not be settled in 2026. But the numbers will keep growing, and so will the argument. The world’s largest military budget is about to get larger, and the world will be watching every dollar of it.

FAQ

How big is the US military budget?
The United States spent 954 billion dollars on its military in 2025, according to SIPRI, about a third of all world military spending. Congress has approved more than one trillion dollars for 2026, which would be a record.

Is the US the biggest military spender in the world?
Yes, by a wide margin. The United States spent more than the next six countries combined in 2025. China was second at an estimated 336 billion dollars, followed by Russia at about 190 billion, Germany at about 114 billion, and India at about 92.1 billion.

How much does the world spend on the military?
Global military spending reached a record 2.887 trillion dollars in 2025, according to SIPRI, equal to 2.5 percent of world economic output, or about 352 dollars per person. It was the eleventh consecutive year of growth.

Why did US military spending fall in 2025?
It fell 7.5 percent mainly because Congress approved no new supplemental military aid for Ukraine in 2025, after approving a cumulative 127 billion dollars over the previous three years. SIPRI expects the decline to be short-lived, with 2026 spending already approved above one trillion dollars.

What percentage of GDP does the US spend on defense?
About 3.12 percent of GDP in 2025, and about 8.3 percent of government spending, according to SIPRI data published by the World Bank. That is far below Cold War peaks as a share of the economy, but the highest absolute total in history.