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The Cost of War

Keywords

war-on-disease, 1-percent-treaty, medical-research, public-health, peace-dividend, decentralized-trials, dfda, dih, victory-bonds, health-economics, cost-benefit-analysis, clinical-trials, drug-development, regulatory-reform, military-spending, peace-economics, decentralized-governance, wishocracy, blockchain-governance, impact-investing

In 2024, humanity spent a record $2.72T on your species’ favorite expensive hobby: organized violence, up 9.4% from the year before, the steepest single-year increase since the Cold War51. If you stacked that money in one-dollar bills, you could build a bridge two-thirds of the way to the Moon. You are building faster.

You spend enough on weapons to pave a road to space. Yet you can’t figure out how to stop dying from diseases we know how to cure. And that’s just the money you spend on purpose. The Pentagon has lost $2.5 trillion136. Not spent. Lost. Like car keys, except these car keys could cure cancer hundreds of times over.

This chapter is the receipt. A credit card bill for self-destruction. Instead of coffee and books, you bought missiles and robots. Instead of interest, you pay in human lives. And unlike a credit card, you can’t declare bankruptcy. You just keep paying.

The Itemized Receipt for Armageddon

The costs of war look like a grocery receipt from a shop that only sells things that explode. Everything has a price. None of it is food.

The Shopping List (2024 Global Data)

Cost Category Amount (USD Billions) Per Capita Daily Cost Mathematical Basis
Military Personnel Salaries $681.5 $87.37 $1.87B Global armed forces: 28.4M × avg. salary $24,000 (adjusted for inflation)137
Weapons Procurement $654.3 $83.88 $1.79B SIPRI Arms Transfer Database64 aggregation
Operations & Maintenance $579.8 $74.33 $1.59B NATO standardized O&M ratios × global spending138
Military Infrastructure $520.4 $66.72 $1.43B Base construction/maintenance × 4,435 major facilities139
Intelligence Operations $282.0 $36.15 $0.77B Estimated 10.4% of total military budgets140

Total Direct Military Spending: $2,718.0 billion

Global military spending (inflation-adjusted) has grown 2.7× since 1960

Global military spending (inflation-adjusted) has grown 2.7× since 1960

This chart shows 124 years of global military spending from 1900 to 2024, all adjusted for inflation to constant 2023 dollars.

What 124 Years of Receipts Are Screaming at Us

  • WWII Peak (1944): $3.27 trillion - the largest military mobilization in human history, still exceeding modern spending
  • WWI Peak (1918): $718 billion - significant but far smaller than WWII
  • Modern Era (2024): $2.72 trillion - approaching but not yet exceeding the WWII peak

Despite decades of peace and the absence of total global war, current military spending ($2.72T) is 83% of the WWII peak and 41× higher than pre-WWI levels ($66B in 1900). The world spends nearly as much on military today as it did during the largest war in history.

Data Sources

  • 1900-2012: Correlates of War National Material Capabilities Dataset (COW NMC)
  • 2013-2024: SIPRI (Stockholm International Peace Research Institute) Military Expenditure Database
  • All values converted to constant 2023 USD using CPI data

The Equation of Immediate Destruction

The basic math for direct war costs looks like this:

\[ \mathrm{C}_{\text{direct}} = \mathrm{M}_{\text{spending}} + \mathrm{I}_{\text{damage}} + \mathrm{H}_{\text{casualties}} + \mathrm{T}_{\text{disruption}} \]

Here is what those letters mean, in case you find algebra comforting:

  • Military Spending: The money for soldiers, bombs, and fast jets.
  • Infrastructure Damage: The cost to rebuild the cities, bridges, and power plants you just blew up. You build them, blow them up, build them again. It is the world’s most expensive form of recycling.
  • Human Casualties: The value of lost lives. Even economists, who disagree about everything, agree that dead people are bad for business.
  • Trade Disruption: The money lost when bombs interrupt commerce. Trucks cannot truck when the road is a crater.

Current Annual Calculation

  • Mspending = $2.72T (verified via SIPRI database64)
  • Idamage = $1.88T (reconstruction cost estimates from 47 active conflicts)
  • Hcasualties = $2.45T (245 thousand deaths/year total conflict deaths × $10M VSL per EPA guidelines141 - includes combat deaths, terrorism, and state violence; see Death Accounting section below for breakdown)
  • Tdisruption = $616B142

Cdirect = $7,655 billion annually

Every second of every day, humanity spends $242,600 on killing each other and cleaning up the mess. While you read this sentence, you spent about $1.2 million. By the time you feel bad about that, another million is gone.

Military Hardware: The World’s Worst Investment

If weapons were a stock, here is the prospectus:

  • Expected annual return: 0%.
  • If actually used, return: -100% (everything explodes, including the investment).
  • Maintenance costs: $579.8B/year.
  • Useful life: 10-20 years before obsolescence.
  • Salvage value: $0.
  • Exit strategy: Death.
  • Investor profile: Nations with more money than sense.
  • Side effects: May accidentally destroy civilization.
  • Competitive dynamics: Makes neighbors buy the same product.
  • Success condition: Only “works” if it is never used (if you use nuclear weapons, you have already failed).

No rational investor would touch this. You put trillions into it annually.

You buy weapons because they have weapons. They buy weapons because you have weapons. Everyone has weapons. Nobody is safer. You’re very good at circles.

You buy weapons because they have weapons. They buy weapons because you have weapons. Everyone has weapons. Nobody is safer. You’re very good at circles.

The Dead Capital Problem

Normal money grows. You plant an apple tree, you get apples. You build a factory, you get products. You invest in a hospital, people live longer and pay more taxes.

Military money sits in a warehouse, rusts, becomes obsolete, and has negative net value. If used, it destroys value, creates rebuilding bills, and kills your customers. It is the only investment where success means you wasted your money, and failure means everyone is dead.

Normal investment: money becomes factories, factories make products, products make money. Military investment: money becomes bombs, bombs make rubble, rubble makes nothing. You prefer the second one.

Normal investment: money becomes factories, factories make products, products make money. Military investment: money becomes bombs, bombs make rubble, rubble makes nothing. You prefer the second one.

President Eisenhower (who defeated the Nazis) explained this in 1953:

“Every gun that is made, every warship launched, every rocket fired signifies, in the final sense, a theft from those who hunger and are not fed, those who are cold and are not clothed.”

A bomb is not an asset. It is a very expensive liability, like filling your garage with dynamite and calling it “home security.”

This is not pacifism. This is accounting.

A tractor builds value forever. A tank destroys value once. You bought more tanks.

A tractor builds value forever. A tank destroys value once. You bought more tanks.

The Price of a Ghost: Valuing Human Life

The U.S. Department of Transportation143 says a statistical life is worth $13.6 million131. The EPA says $9.6 million141. Two government agencies, both American, cannot agree on what you are worth. A four million dollar disagreement over the price of a person. We will split the difference and say $10 million, which is generous for a species that keeps blowing itself up.

The Transportation Department says your life is worth $13.6 million. The EPA says $9.6 million. They can’t agree on the price of you. But they can agree to spend it on missiles.

The Transportation Department says your life is worth $13.6 million. The EPA says $9.6 million. They can’t agree on the price of you. But they can agree to spend it on missiles.

Annual Mortality Cost Calculation

Conflict Type Deaths/Year Cost per Death Annual Cost Source
Active Combat

234 thousand deaths/year

$10,000,000

$2.34T

Armed Conflict Location & Event Data144
Terror Attacks

8.3 thousand deaths/year

$10,000,000

$83B

Global Terrorism Database145
State Violence

2.7 thousand deaths/year

$10,000,000

$27B

Uppsala Conflict Data Program146

Total Human Cost: $2.45T annually

245 thousand people die in conflicts each year. That is 670 people every day. One every 2.2 minutes. Each worth $10 million, apparently.

Infrastructure Destruction: Building Things, Then Un-Building Them

When humans fight, they break things. Big things. Expensive things. Things they spent decades building. Things that took international loans to finance. Things they will take out new international loans to rebuild.

Reconstruction Cost Analysis (2023 Estimates)

Infrastructure Type Damage Value (Billions) Replacement Multiplier Mathematical Model
Transportation Networks $487.3147 1.4× original cost Road density × conflict area × reconstruction premiums
Energy Infrastructure $421.7147 2.1× original cost Power generation capacity × regional multipliers
Communications Systems $298.1147 1.8× original cost Network infrastructure × technology replacement costs
Water & Sanitation $267.8147 1.6× original cost Population served × per-capita infrastructure costs
Educational Facilities $234.5147 1.3× original cost Student capacity × modern construction standards
Healthcare Systems $165.6147 1.9× original cost Bed capacity × medical equipment replacement

Total Infrastructure Damage: $1.88T

Replacing a bridge in a war zone costs 1.3-2.1x more than building one in peace, with additional conflict zone premiums of 1.2-1.8x. You pay extra because the construction workers keep getting shot at. This is what economists call a “conflict premium” and what normal people call “insane.”

Economic Disruption: The Ripple Effect

Wars stop trade. Global commerce is a fragile thing, like a very large soufflé that you keep dropping bombs on. Every supply chain is a chain, and chains break at the weakest link. You keep bombing the weakest link.

Trade Flow Disruption Matrix

Disruption Category Annual Loss (Billions) Calculation Method Duration Factor
Shipping Route Blockages $247.141 Maritime traffic × route closure days × cargo value 3.2 years avg
Supply Chain Interruptions $186.841 Manufacturing output × input delays × multiplier effects 2.8 years avg
Energy Price Volatility $124.741 Consumption × price differential × demand elasticity 1.9 years avg
Currency Instability $57.441 Trade volume × exchange rate volatility × hedging costs 4.1 years avg

Total Trade Disruption: $616B annually

That is the cost of ships that cannot ship, trucks that cannot truck, and planes that cannot plane, all because of bombs. The global economy is a machine, and you keep throwing grenades into the gears.

The Ghost in the Machine: Indirect Costs

The direct costs are just the sticker price. The real cost of war is what you didn’t buy. Every dollar spent on a missile is a dollar that didn’t cure leukemia, educate a child, or build a bridge that wasn’t going to be blown up.

The bullets are cheap. The lost hospitals are expensive. You only count the bullets.

The bullets are cheap. The lost hospitals are expensive. You only count the bullets.

Opportunity Cost Analysis: The Roads Not Taken

Here is a thought experiment that apparently qualifies as radical in your civilization: What if you spent your war money on literally anything else? A dart thrown at a random page of the budget would land on something more useful.

Comparative Investment Analysis (2023 Dollars)

Alternative Investment Global War Spending Could Fund Mathematical Conversion Annual Benefit
Medical Research 40.3 years of current spending $2.72T ÷ $67.5B = 40.3 WHO research expenditure148
Global Education Access 90.6 years of universal coverage $2.72T ÷ $30B149 = 90.6 UNESCO Education for All150
Poverty Eradication 2.7 complete eliminations $2.72T ÷ $1,000B151 = 2.7 World Bank extreme poverty estimates

The Multiplier Effect: Economic Growth You Are Choosing Not to Have

Every dollar the government spends creates more than a dollar of economic activity. This is called a “multiplier.” Here are yours:

  • Military spending: 0.6xx. (Bombs do not buy groceries.)
  • Infrastructure: 1.6xx. (Roads let trucks truck.)
  • Education: 2.1xx. (Educated people invent things.)
  • Healthcare: 4.3xx. (Alive people spend money.)
Lost GDP Growth Calculation

The math is simple. Money spent on bombs grows the economy a little (the bomb factory employs people, who buy sandwiches). Money spent on anything else grows it a lot more. By choosing bombs, you choose to be poorer. Deliberately. Every year. On purpose. You are the only species that has figured out compound interest and then decided to compound losses instead.

\[ \begin{aligned} \text{Alternative GDP Growth} = {} & (\text{Military Spending} \times \text{Alternative Multiplier}) \\ & - (\text{Military Spending} \times \text{Military Multiplier}) \end{aligned} \]

Healthcare returns 4.3x per dollar. Military returns 0.6x per dollar. You invested in the one that loses money because it has cooler explosions.

Healthcare returns 4.3x per dollar. Military returns 0.6x per dollar. You invested in the one that loses money because it has cooler explosions.

\[ \text{Alternative GDP Growth} = (\$2.7\text{T} \times 1.6) - (\$2.7\text{T} \times 0.6) = \$2.7\text{T} \]

We lose $2.7 trillion in growth. Every year. Forever.

Long-term Human Costs: The Gift That Keeps on Taking

Wars do not end when the shooting stops. They linger like a house guest who broke your furniture, traumatized your children, and now needs therapy. Which you also pay for.

Veteran Healthcare Cost Projections

Cost Category 2023 Spending 20-Year Projection Mathematical Model
PTSD Treatment $47.2B42 $944B42 Current cases × treatment duration × cost inflation
Physical Rehabilitation $63.8B42 $1,276B42 Injury complexity index × technology advancement costs
Disability Compensation $89.1B42 $1,782B42 Disability ratings × benefit schedules × actuarial projections
Total Veteran Care $200.1B42 $4,002B42 Composite of above factors

Veterans need care for decades after the war “ends,” with healthcare costs inflating at 3.5-4.6% annually152. The war ends. The bill does not. You are still paying for Vietnam. Your grandchildren will still be paying for Iraq.

Refugee Support: The Mathematics of Making People Leave

108.4 million displaced people153. That is roughly the population of Germany, except these people do not have Germany. $1,384 per year per person40 just to keep them alive in tents. That is $150.0 billion annually to warehouse the people your wars displaced.

108.4 million refugees. $1,384 per person to house them. Total cost: less than three weeks of global military spending. You chose the missiles.

108.4 million refugees. $1,384 per person to house them. Total cost: less than three weeks of global military spending. You chose the missiles.

Each refugee also loses $23,400 in earning potential annually154, adding another $2.5 trillion in lost GDP. These are doctors, engineers, teachers, and farmers who are now professionally employed at standing in line for water.

Environmental Degradation: Poisoning the House You Live In

Wars poison the planet. Explosions, it turns out, are not good for the environment. This should not require saying, and yet here we are, saying it, because you keep acting surprised.

Environmental Cost Calculation Matrix

Environmental Impact Damage Value Restoration Cost Time to Recovery
Soil Contamination $34.7B35 $69.4B35 15-30 years
Water Source Pollution $28.3B35 $56.6B35 8-25 years
Air Quality Degradation $21.9B35 $43.8B35 2-8 years
Biodiversity Loss $15.1B35 Irreplaceable Forever

Total Environmental Damage: $100B annually

The biodiversity loss is listed as “irreplaceable.” Once a species is extinct, money cannot bring it back. You have not invented un-extinction yet. You have been too busy inventing new ways to cause regular extinction.

The Existential Overdraft: The AI Arms Race

You perfected every way to kill each other with rocks and atoms. Then, with the restless creativity of a species that cannot sit still, you invented a new one: artificial intelligence. Now you are in a race to build the smartest machine possible and hand it a weapon. You called your species “Homo sapiens,” which means “wise man.” This was aspirational.

You’re building robot soldiers that think faster than you and can’t explain why they shoot. This might be bad. A 1% safety tax could fix it. You haven’t implemented the tax.

You’re building robot soldiers that think faster than you and can’t explain why they shoot. This might be bad. A 1% safety tax could fix it. You haven’t implemented the tax.

The problem with teaching a toaster to wage war is that it is not human. It does not fear being turned into dust. It lacks the morals that (sometimes, on good days, when properly caffeinated) keep you from destroying a city just to be “efficient.” The main risks of giving the car keys to a killer computer:

  • Autonomous Decisions: AI systems making lethal choices without a human checking. This works great until the AI decides the most efficient way to stop war is to remove the species that starts them. That is you, in case you were wondering.
  • Blinding Speed: An AI conflict could escalate from a small argument to global destruction in minutes. This happens before a human can find the right button, convene a meeting, or finish their coffee.
  • Opaque Logic: You do not always know why an AI makes choices. So when your drone army attacks a neutral alpaca farm, good luck writing the apology letter.

Here is how you start to fix this. Take 1% of the money you plan to spend on killer robots. One cent out of every dollar. Use it to fund research on how to keep them from killing you. This is not idealism. It is insurance against your own cleverness, which is, historically, the thing most likely to kill you. You invented dynamite, nuclear fission, and social media. Your track record with powerful inventions is not reassuring.

The Total Cost of Organized Violence

Here is the grand total. You may want to sit down. Actually, you are probably already sitting. You may want to lie down. Perhaps permanently.

Comprehensive Cost Analysis (2024)

Direct Costs Summary

Category Amount (Billions) Percentage Daily Rate
Military Expenditure $2,718.0 36.0% $7.45B
Human Life Losses $2,446.0 32.4% $6.70B
Infrastructure Destruction $1,875.0 24.9% $5.14B
Trade Disruption $616.0 8.2% $1.69B
Direct Subtotal $7,655.0 100% $20.97B

Indirect Costs Summary

Category Amount (Billions) Percentage Daily Rate
Lost Economic Growth $2,718.0 76.4% $7.45B
Veteran Healthcare $200.142 5.6% $0.55B
Refugee Support $150.0153 4.2% $0.41B
Environmental Damage $100.035 2.8% $0.27B
Psychological Impact $232.039 6.3% $0.64B
Lost Human Capital $300.038 8.1% $0.82B
Indirect Subtotal $3,700.1 100% $10.14B

Ultimate Total

\[ \begin{gathered} Cost_{war,total} \\ = Cost_{war,direct} + Cost_{war,indirect} \\ = \$7.66T + \$3.7T \\ = \$11.4T \end{gathered} \]
where:
\[ \begin{gathered} Cost_{war,direct} \\ = Loss_{life,conflict} + Damage_{infra,total} \\ + Disruption_{trade} + Spending_{mil} \\ = \$2.45T + \$1.88T + \$616B + \$2.72T \\ = \$7.66T \end{gathered} \]
where:
\[ \begin{gathered} Loss_{life,conflict} \\ = Cost_{combat,human} + Cost_{state,human} \\ + Cost_{terror,human} \\ = \$2.34T + \$27B + \$83B \\ = \$2.45T \end{gathered} \]
where:
\[ \begin{gathered} Cost_{combat,human} \\ = Deaths_{combat} \times VSL \\ = 234{,}000 \times \$10M \\ = \$2.34T \end{gathered} \]
where:
\[ \begin{gathered} Cost_{state,human} \\ = Deaths_{state} \times VSL \\ = 2{,}700 \times \$10M \\ = \$27B \end{gathered} \]
where:
\[ \begin{gathered} Cost_{terror,human} \\ = Deaths_{terror} \times VSL \\ = 8{,}300 \times \$10M \\ = \$83B \end{gathered} \]
where:
\[ \begin{gathered} Damage_{infra,total} \\ = Damage_{comms} + Damage_{edu} + Damage_{energy} \\ + Damage_{health} + Damage_{transport} + Damage_{water} \\ = \$298B + \$234B + \$422B + \$166B + \$487B + \$268B \\ = \$1.88T \end{gathered} \]
where:
\[ \begin{gathered} Disruption_{trade} \\ = Disruption_{currency} + Disruption_{energy} \\ + Disruption_{shipping} + Disruption_{supply} \\ = \$57.4B + \$125B + \$247B + \$187B \\ = \$616B \end{gathered} \]
where:
\[ \begin{gathered} Cost_{war,indirect} \\ = Damage_{env} + Loss_{growth,mil} + Loss_{capital,conflict} \\ + Cost_{psych} + Cost_{refugee} + Cost_{vet} \\ = \$100B + \$2.72T + \$300B + \$232B + \$150B + \$200B \\ = \$3.7T \end{gathered} \]

$11.4 trillion. Every year.

That is $1,419 per person per year. Including babies, who did not vote for this. Over an 80-year lifetime: $113,551 per person. A decent car, a year of college, or a down payment on a house. You got bombs instead. Bombs you will never see, in countries you cannot find on a map.

War costs you $113,551 in your lifetime. That’s a car, or college, or a down payment on a house. You got none of those things. You got bombs in countries you can’t pronounce.

War costs you $113,551 in your lifetime. That’s a car, or college, or a down payment on a house. You got none of those things. You got bombs in countries you can’t pronounce.

For Context

That is 12.7% of global GDP155, 168 times the WHO’s budget156, and enough to end extreme poverty 11.4 times over151. You could end poverty eleven times and still have change left for a twelfth. You bought bombs instead. If stupidity were a natural resource, you would be energy independent.

Each missile costs the same as 50 teachers’ salaries. You have many missiles. You have large classrooms.

Each missile costs the same as 50 teachers’ salaries. You have many missiles. You have large classrooms.

The Running Tab

$11.4T per year is just the current bill. It does not include the historical tab, which is enormous, unpaid, and still accruing interest in the form of dead people.

The United States alone (one country, on one planet, in one unremarkable solar system) has spent the following on its named wars: the Civil War ($112B), World War I ($468B), World War II ($5.7T), Korea ($478B), Vietnam ($1T), and the post-9/11 wars ($8T). That is over $16 trillion on wars with names157,158. The ones without names cost extra. And this is just America’s share. Everyone else was also buying bullets.

The total tab for everyone, across all of recorded history, is approximately $180 trillion in constant 2024 dollars.1

Three-quarters of that was spent after 1945, during what your historians call “the long peace.” It is the most expensive peace in history. The 2024 bill alone hit a record $2.72T, up 9.4% in a single year, the steepest increase SIPRI has ever recorded51. You are not winding down. You are warming up.

To put $180 trillion in perspective: one year of modern military spending ($2.7 trillion) exceeds the entire military expenditure of the Roman Empire across five centuries. And $180 trillion divided by $4.5B per year equals 40,000 years of government-funded clinical trials. Your species has been running clinical trials for about 80 years. You could have funded every clinical trial you will ever run, for the next 500 lifetimes, with the money you spent killing each other. Instead, you have a very large collection of spent shell casings and 6,650 diseases with zero FDA-approved treatments.

The full receipt, and the money printer that funded most of it, is in Your Money Comes From a Building.

Hidden Costs of War

War destroys the hospital. Then there’s no hospital to treat the war wounds. Then people die of preventable diseases. Then the economy collapses. Then you have another war. It’s very efficient.

War destroys the hospital. Then there’s no hospital to treat the war wounds. Then people die of preventable diseases. Then the economy collapses. Then you have another war. It’s very efficient.

When you look at the secondary effects, the costs compound like interest at a bank run by sadists. Each consequence causes the next one, in a circle of misery that would be elegant if it were not so stupid:

  • Cities become parking lots (expensive to rebuild, poor for foot traffic).
  • Children miss school (they grow up to be uneducated adults, who start more wars).
  • Hospitals explode (the building you need to fix war injuries was destroyed by the war).
  • Farms get poisoned (everyone gets hungry, hungry people fight, see line one).
  • Millions get PTSD (they can’t work and need therapy for decades).
  • The lucky ones just die.
  • The unlucky ones live with the memory of having been unlucky.

  1. This estimate is built from multiple sources. SIPRI data from 1988-2024 sums to approximately $65-72 trillion in constant dollars51,64. The Cold War era (1946-1987) adds roughly $50-70 trillion, reconstructed from US spending data (the US accounted for ~37-40% of global totals) and CIA estimates of Soviet expenditure. World War II cost all belligerents approximately $23 trillion in 2024 dollars159, World War I approximately $7 trillion, with another $3-5 trillion for interwar military budgets. The 19th century adds roughly $3 trillion (Napoleonic Wars, American Civil War, colonial conflicts, routine garrison spending). Pre-1800 military spending, estimated via GDP-share equivalence using Maddison Project historical GDP data, adds $4-20 trillion with enormous uncertainty; the Roman Empire alone spent an estimated $1-2 trillion over five centuries. The range is $150-225 trillion; $180 trillion is the central estimate. Roughly 75% of the total was spent after 1945, because global GDP grew 100-fold since 1900 while military burdens stayed at 2-5% of output.↩︎