Opinion by Mathew Carr

July 21, 2026 — The new chancellor might be inclined to put defense borrowing outside current fiscal rules….further debt enslaving the next generation as Labour UK continues to fail to properly tax wealthy people.

New PM Andy Burnham announced reduced electricity prices by cutting VAT on it, a policy that’s not funded.

Savings would be about £45 per household per year, BBC said.

Big unfunded spending equals big debt and the increased chance of a repayment default.

The US is seeking to expand globally its mafia-like protection racket.

Once again, ordinary people pay for the violent, greedy fuckery. This time, via higher interest rates.

https://www.dw.com/en/hegseth-says-iran-war-has-cost-375-billion-so-far/live-78060128

https://www.visionofhumanity.org/economic-impact-of-violence/

Norton Neo AI

## 💸 The Multi-Trillion Dollar Cost of War in the 21st Century

Quantifying the total global cost of war and conflict in this century (2001 to the present) is a massive undertaking. Economists and peace researchers divide these costs into **direct military expenditures**, **indirect societal and economic losses**, and the broader **macroeconomic impact of violence**.

Depending on how these costs are calculated, the financial toll of war and militarism in the 21st century ranges from **nearly $10 trillion in direct war-specific budgets** to **hundreds of trillions of dollars in cumulative global economic impact**.

—

### 1. Direct Costs of Post-9/11 Wars (~$8.2 Trillion for the US alone)

The most rigorous ongoing accounting of direct 21st-century war costs is conducted by the *Costs of War Project* at Brown University [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror). It focuses on the U.S.-led global “War on Terror” across 85 countries over the last 25 years [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror):

* **Total US Spending:** Approximately **$8.2 trillion** (and counting) [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror).

* **Where the Money Went:**

* **$2.3 trillion** for direct military operations in Afghanistan (2001–2021) [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror).

* **$1.1 trillion** for operations in Iraq (2003–2021) [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror).

* **$2.2 trillion** in obligated lifetime medical and disability care for over 4 million post-9/11 veterans [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror).

* **$1.1 trillion** in homeland security measures [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror).

* **$1.1 trillion** in compounding interest payments, as these wars were funded almost entirely by borrowing rather than tax increases [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror).

*If you add the localized war expenditures of other major combatants—including Russia, Ukraine, European nations, and regional powers in the Middle East and Africa—the direct, localized budgetary cost of active warfare in this century comfortably **exceeds $10 to $12 trillion**.*

—

### 2. Global Military Expenditures (~$45 Trillion)

Military spending represents the capital that nations divert toward the preparation for and containment of war.

* According to the Stockholm International Peace Research Institute (SIPRI), global military spending reached a record **$2.9 trillion annually** [source](https://businessfortnight.com/iep-record-conflicts-drive-peace-to-historic-low-as-ai-warfare-surges/).

* Aggregated over the first 25 years of this century, the world has spent an estimated **$40 to $45 trillion** on national defense, weapon procurement, and standing armies.

—

### 3. Cumulative Global Economic Impact (~$350+ Trillion PPP)

To understand the true drag of conflict, the Institute for Economics & Peace (IEP) calculates the *total economic impact of violence* [source](https://www.visionofhumanity.org/economic-impact-of-violence/). This model factors in direct war costs, GDP losses due to conflict, the economic toll of refugees/displacement, and the “multiplier effect” (the lost opportunity of not investing that capital into productive sectors like healthcare, infrastructure, and education) [source](https://www.visionofhumanity.org/economic-impact-of-violence/).

* **Annual Cost:** In recent years, the global economic impact of violence has hovered between **$17.5 trillion and $21.8 trillion annually** (measured in Purchasing Power Parity, or PPP) [source](https://businessfortnight.com/iep-record-conflicts-drive-peace-to-historic-low-as-ai-warfare-surges/, [source](https://www.visionofhumanity.org/modelling-the-economic-opportunity-of-peace/)). This accounts for roughly **10.5% to 11.6% of total global GDP** [source](https://businessfortnight.com/iep-record-conflicts-drive-peace-to-historic-low-as-ai-warfare-surges/, [source](https://www.visionofhumanity.org/economic-impact-of-violence/)).

* **Cumulative Century Cost:** Averaging these figures since 2001, the cumulative economic impact of war, conflict, and violence containment in the 21st century is estimated to be between **$350 trillion and $400 trillion (PPP)**.

—

### 4. The Human and Indirect Toll

The financial ledger of war is inextricably linked to devastating human and structural losses, which carry their own deep economic consequences:

* **Displacement:** The post-9/11 wars alone have displaced at least **38 million people** [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror). The global economic toll of managing refugees and internally displaced persons (IDPs) was estimated at **$343 billion** in a single year [source](https://www.visualcapitalist.com/19-trillion-global-cost-of-conflict/).

* **GDP Destruction:** IEP synthetic modeling shows that countries suffering from prolonged conflicts lose an average of **25% of their potential GDP** within five years of the war starting [source](https://www.visionofhumanity.org/modelling-the-economic-opportunity-of-peace/). For example, Syria faced a 72% reduction in trade volume, and Libya suffered a 53% drop in GDP output five years post-conflict [source](https://www.visionofhumanity.org/modelling-the-economic-opportunity-of-peace/).

* **Indirect Deaths:** Beyond the estimated **1 million direct combat deaths** in this century, destroyed infrastructure, food insecurity, and collapsed healthcare systems have caused an estimated **3.6 to 3.7 million indirect deaths** [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror).

—

### Summary of Estimates (2001–Present)

| Cost Category | Estimated Total | Scope / Details |

| :— | :— | :— |

| **U.S. Post-9/11 Wars** | **$8.2 Trillion** | Direct military, veteran care, interest, and homeland security [source](https://www.warcosts.org/analysis/true-cost-of-war-on-terror). |

| **Global Military Spending** | **~$45 Trillion** | Cumulative national defense budgets worldwide (2001–2026). |

| **Global Economic Impact** | **~$350–$400 Trillion (PPP)** | Total global economic cost of war, violence containment, and lost opportunity [source](https://www.visionofhumanity.org/economic-impact-of-violence/). |

Gemini

Quantifying the global cost of war in the 21st century requires looking beyond ammunition and hardware. Economists and researchers typically divide the cost into three layers: direct military spending, macroeconomic losses (destroyed infrastructure, lost GDP, and inflation shocks), and long-term human and social obligations.

1. Direct Military Expenditures: ~$45–50+ Trillion

Since 2000, cumulative global defense spending has exceeded $45 trillion. According to the Stockholm International Peace Research Institute (SIPRI) and the United Nations, annual global military expenditures reached a record $2.7 trillion.

• Major Spenders: The United States accounts for roughly 37–40% of all global military spending, followed by China, Russia, India, and Saudi Arabia.
• Post-9/11 Wars: Brown University’s Costs of War project estimates that the U.S. alone has spent over $8 trillion directly on post-9/11 military operations in Iraq, Afghanistan, Syria, Yemen, and global counterterrorism efforts.

2. Macroeconomic Impact & Lost Output

The broader economic fallout of war reaches far beyond military line items:

• Annual Cost of Violence: The Institute for Economics & Peace (IEP) calculates the overall global economic impact of violence and armed conflict at $19.1 trillion annually (in Purchasing Power Parity). This includes military budgets, internal security, violent crime, and lost production.
• GDP Contraction: The International Monetary Fund (IMF) notes that countries hosting active conflicts experience an average 7% cumulative loss in GDP within five years, with recovery taking decades.
• Global Spillovers: Conflicts in major trade and energy hubs—such as the Black Sea or the Strait of Hormuz—trigger global spikes in shipping, food, energy prices, and supply chain bottlenecks.

3. Long-Term Human & Social Costs

Metric	Estimated Scale (2000–Present)
Post-9/11 Conflict Deaths	4.5–4.7M (Direct + Indirect)
Forcibly Displaced	120M+ worldwide
U.S. Veterans’ Long-term Care	$2.2–$2.5T through 2050
Annual War GDP Losses	~$462B direct annual destruction

Beyond immediate battlefield deaths, the largest human toll comes from indirect deaths caused by the destruction of health systems, water supply infrastructure, sanitation, and food security.

4. The Opportunity Cost

The UN notes a major “opportunity cost” in sustained high defense spending: $1 million invested in defense creates roughly 5 jobs, whereas the same $1 million invested in healthcare creates 9 jobs, and in primary education, nearly 13 jobs.