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The Costs of War Project

@costsofwar.bsky.social
1.1K followers 211 following 926 posts

The human, budgetary, environmental, and social costs of U.S. wars and military operations, at home and abroad. Housed at Brown University's Watson School of International and Public Affairs at costsofwar.org.

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Reposted by The Costs of War Project
PERI Umass Amherst @periumass.bsky.social · 29/09/2026
Tomorrow, join the @gamechangerspolicy.bsky.social webinar, “Cutting the Military Budget While Improving Real Security” Date: Wednesday, Sept. 30, 2026 4 p.m./5 p.m. ET Register for the webinar: bit.ly/GCWebinarLabor @ips-dc.org @nationalpriorities.bsky.social @costsofwar.bsky.social
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The Costs of War Project @costsofwar.bsky.social · 29/09/2026
From 2020-2024, the U.S. government invested over twice as much money in five weapons companies as it spent on diplomacy and international aid. costsofwar.watson.brown.edu/paper/profit...
From 2020-2024, the U.S. government invested over twice as much money in 5 weapons companies as it spent on diplomacy and international aid.
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The Costs of War Project @costsofwar.bsky.social · 28/09/2026
Join us for the @gamechangerspolicy.bsky.social webinar: “Cutting the Military Budget While Improving Real Security” Wednesday, Sept. 30 at 4pm ET With Lindsay Koshgarian, @sunjeevbery.bsky.social, @hannahomestead.bsky.social and Costs of War's Heidi Peltier. Register: bit.ly/GCWebinarLabor
Game Changers Webinar Series
Cutting the Military Budget While Improving Real Security
Wednesday, Sept. 30 / 4-5pm ET
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The Costs of War Project @costsofwar.bsky.social · 28/09/2026
Even some U.S. defense workers agree: the military’s emissions are a huge problem for the climate. costsofwar.watson.brown.edu/paper/uk-and...
Quote: "Just greenwashing isn't going to do it. Just putting solar panels up isn't going to do it. So we're trying to stress that the only way to really lower emissions of the military [is] to make the military smaller." — U.S. military industry worker
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The Costs of War Project @costsofwar.bsky.social · 25/09/2026
Suitt found that at least four times as many service members and war veterans of post-9/11 conflicts died of suicide than in combat.
Graphic:

7,057 U.S. service members killed in post-9/11 war operations

30,177 suicides among U.S. service members & veterans of the post-9/11 wars
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The Costs of War Project @costsofwar.bsky.social · 25/09/2026
High suicide rates mark the failure of the U.S. government and U.S. society to manage the mental health costs of our current conflicts, writes Thomas Howard Suitt, III. [2/3] costsofwar.watson.brown.edu/paper/high-s...
costsofwar.watson.brown.edu
High Suicide Rates among United States Service Members and Veterans of the Post-9/11 Wars
Suicide rates among active military personnel and veterans of the post-9/11 wars are reaching new peaks. This report uses governmental data, secondary literature, and interviews to document a suicide ...
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The Costs of War Project @costsofwar.bsky.social · 25/09/2026
A Navy official revealed that eight service members have attempted suicide on the U.S.S. Lincoln. [1/3] www.theguardian.com/us-news/2026...
theguardian.com
Eight USS Lincoln personnel have attempted suicide, US navy confirms
Hung Cao, acting US navy secretary, answered questions from US senator Kirsten Gillibrand in a letter
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The Costs of War Project @costsofwar.bsky.social · 25/09/2026
While the decision to go to war can seemingly be made in an instant, the human and economic consequences can last for generations.
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The Costs of War Project @costsofwar.bsky.social · 23/09/2026
Many have made bold claims about the economic benefits the U.S. military brings to Hawai‘i. The facts show the military’s contribution is significantly smaller than most people think. thediplomat.com/2026/09/bust...
thediplomat.com
Busting the Myths of the US Military’s Presence in Hawai‘i
As land leases come up for renewal, a new report reveals the facts about the U.S. Armed Forces’ impacts in the Pacific Islands.
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The Costs of War Project @costsofwar.bsky.social · 22/09/2026
Great article in the Brown Daily Herald with background on our collaboration with Mwatana for Human Rights on recent research on civilian deaths in Yemen: www.browndailyherald.com/article/us-a...
browndailyherald.com
U.S. airstrikes in Yemen caused at least 576 civilian casualties between 2023 and 2025, Watson study estimates
The report examines the human cost of 46 airstrikes from two military operations since December 2023.
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The Costs of War Project @costsofwar.bsky.social · 21/09/2026
U.S. news organizations’ 9/11 anniversary coverage failed to fully inform the public of the true costs of the wars that followed, writes Elliot Negin, citing our research.  themoneytrail.substack.com/p/us-media-c...
themoneytrail.substack.com
U.S. media coverage of the 9/11 anniversary didn’t tell the whole story
Nearly 3,000 people died on September 11, 2001. Post-9/11 wars killed more than 900,000.
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The Costs of War Project @costsofwar.bsky.social · 21/09/2026
“A lot of these human war costs are not ones that we Americans are always aware of when we think about war.” The reverberating impacts of war lead to many more deaths than the war itself, notes Stephanie Savell on @btlradionews.bsky.social. btlonline.org/25-years-lat...
btlonline.org
25 Years Later, U.S. Post-9/11 Wars Globally Caused 4.5 Million Deaths, Cost $8 Trillion
September 11th Families for Peaceful Tomorrows' Elizabeth Miller and Costs of War Project at Brown University's Watson Institute's Stephanie Savell on the U.S. post-9/11 wars $8 trillion cost, which l...
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The Costs of War Project @costsofwar.bsky.social · 18/09/2026
Read our research by Dr. Mimi Syed on the Israeli military's use of small tactical drones in Gaza. costsofwar.watson.brown.edu/paper/Quadco...
costsofwar.watson.brown.edu
Lethal Precision Without Accountability: Israeli Government "Quadcopter" Use in Gaza
This report illustrates that the manner in which the Israeli military uses small tactical drones in Gaza as instruments of “precision warfare” has not reduced civilian harm but has intensified it. Dr....
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The Costs of War Project @costsofwar.bsky.social · 18/09/2026
"Within seconds, the drone released a glide bomb, designed to allow operators to identify and strike targets with a high degree of accuracy." Witnesses describe an Israeli drone in Gaza that killed a child and a medic. www.theguardian.com/world/2026/s...
theguardian.com
‘Run! Get away!’: witnesses recount Israeli ‘double tap’ strike that killed child and medic in Gaza
When Mohammad Abdul Zinati, 15, rushed to help a man wounded in a bomb attack, he had no time to react before he too was hit
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The Costs of War Project @costsofwar.bsky.social · 18/09/2026
Read the report, “Deaths and Human Costs of U.S. Airstrikes on Civilian Populations in Yemen”. costsofwar.watson.brown.edu/paper/YemenA...
December 2023-May 2025
Civilian Toll of U.S. Airstrikes in Yemen: 213 Killed and 363 Injured
Operation:
Prosperity Guardian, Dec. 18, 2023-Jan. 19, 2025: 5 Killed/22 Injured
Rough Rider, Mar. 15-May 6, 2025: 208 Killed/341 Injured
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The Costs of War Project @costsofwar.bsky.social · 18/09/2026
Renewed displacement and war in Yemen, where a recent @mhren.bsky.social report in collaboration with Costs of War showed U.S. airstrike incidents since Dec. 2023 resulted in at least 576 civilian casualties.  www.theguardian.com/world/2026/s...
theguardian.com
‘We left everything behind’: 125,000 people displaced as war reignites in Yemen
Fierce fighting has forced people to abandon their homes, leaving everything behind to seek shelter in refugee camps
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The Costs of War Project @costsofwar.bsky.social · 18/09/2026
“Thirty-seven and a half billion dollars, that’s not a serious number. There’s no way it’s less than $100 billion — but then that’s only the tip of the iceberg.” Costs of War contributor Linda Bilmes on the cost of war with Iran: news.harvard.edu/gazette/stor...
news.harvard.edu
Linda Bilmes is doing the math — Harvard Gazette
Budget analyst has made it her life’s mission to elucidate the heavy toll of war: "If we don’t account for something, we don’t value it."
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The Costs of War Project @costsofwar.bsky.social · 17/09/2026
It’s critical that more U.S. leaders question forever wars and begin to devote our resources to meaningful collective security. [END] conta.cc/4qV21hT
conta.cc
Reflecting on 25 Years of Forever Wars Post-9/11
Email from Brown University A Message from Stephanie Savell, Costs of War Director   Reflecting on 25 Years of Forever Wars Post-9/11 A Message from Stephanie Savell, Costs of War Director As we appro
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The Costs of War Project @costsofwar.bsky.social · 17/09/2026
The opportunity costs of war with Iran are massive. The government could be investing elsewhere, whether paying off the national debt or providing for basic societal needs such as healthcare, education, a clean environment, or infrastructure. [4/5] costsofwar.watson.brown.edu/costs/econom...
costsofwar.watson.brown.edu
Other Costs to the U.S. Economy
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The Costs of War Project @costsofwar.bsky.social · 17/09/2026
Even if this war were to end today, it would cost over $1 trillion, writes Costs of War contributor Linda Bilmes. [3/5] www.hks.harvard.edu/faculty-rese...
hks.harvard.edu
Why is the war in Iran so expensive?
How much does the war in Iran cost? The war costs America two billion dollars each day, says war budgeting expert and Harvard Kennedy School faculty member Linda Bilmes—and will cost at least one tril...
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The Costs of War Project @costsofwar.bsky.social · 17/09/2026
It also didn't factor in the more than $100 billion in extra fuel costs that are burdening U.S. households. [2/5] iranwarcost.watson.brown.edu
iranwarcost.watson.brown.edu
Iran War Energy Cost Tracker
Tracks the extra cost paid by U.S. consumers for gasoline and diesel since the Iran conflict began on February 28, 2026, compared against a no-war counterfactual baseline.
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The Costs of War Project @costsofwar.bsky.social · 17/09/2026
New CBO estimates for the Iran war cost don't include costs of recent ⁠U.S. strikes on commercial vessels in the Strait of Hormuz. It also did not factor in the borrowing expenses associated with financing the war. [THREAD] www.reuters.com/world/middle...
reuters.com
Iran war cost hits $38 billion, forecast to rise $3 billion a month, CBO says
The war is expected to increase U.S. inflation by 0.5% in the first three months of 2027, according to the Congressional Budget Office.
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The Costs of War Project @costsofwar.bsky.social · 17/09/2026
The rise in authoritarian policing we’ve seen in recent years has made its way into K-12 schools, writes Costsof War co-founder @cathylutz.bsky.social and @lutzfernandez.bsky.social. www.thenation.com/article/poli...
thenation.com
Electric Shocks for Kids and the Push to Militarize Schools
Electric-shock gloves used on students in Nebraska are the latest sign of how policing, surveillance, and military technology have entered American schools.
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Reposted by The Costs of War Project
Between The Lines Radio Newsmagazine @btlradionews.bsky.social · 14/09/2026
#OnTheAir COUNTERPOINT airs Mondays 8-9:30pmET wpkn.org 89.5FM Bgpt #CT: Elizabeth Miller of 9/11 Families for @peacefultomorrows.bsky.social & Stephanie Savell Dir. Cost of War project reflect on the 9/11 attacks impact on US security, for. policy & civil liberties 25 years later.
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The Costs of War Project @costsofwar.bsky.social · 16/09/2026
Costs of War’s Heidi Peltier speaks at @nukesofhazard.bsky.social 's #CACNP2026 on the trillion-dollar military budget. “In the case of military contract spending, it has routinely been shown that roughly 30-40% of spending results in waste, fraud and abuse.” www.youtube.com/live/ERH6PZr...
youtube.com
2026 Annual Conference — $1 Trillion and Counting: The Pentagon Budget Squeezing Our Real Security
YouTube video by Center for Arms Control and Non-Proliferation (CACNP)
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Reposted by The Costs of War Project
Nukes of Hazard @nukesofhazard.bsky.social · 15/09/2026
Heidi Peltier with @costsofwar.bsky.social: The estimated cost of the GWOT that began in 2001 will be at least $8T. The war in Iran has cost Americans more than $100B in fuel costs alone. #CACNP2026
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The Costs of War Project @costsofwar.bsky.social · 16/09/2026
"Both state policy and a culture that feels comfortable depicting our religion as insidious... has made it easy for a lot of Americans to squint at a Muslim man and see one of the bad guys," writes Meher Ahmad, citing our research. www.nytimes.com/2026/09/15/o...
nytimes.com
Opinion | So Much Lies Hidden Beneath the Mamdani-Giuliani Handshake
Who is allowed to mourn Sept. 11 — and its aftermath?
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The Costs of War Project @costsofwar.bsky.social · 15/09/2026
Read the report, "Deaths and Human Costs of U.S. Airstrikes on Civilian Populations in Yemen". costsofwar.watson.brown.edu/paper/YemenA...
December 2023-May 2025
Civilian Toll of U.S. Airstrikes in Yemen: 213 Killed and 363 Injured
Operation:
Prosperity Guardian, Dec. 18, 2023-Jan. 19, 2025: 5 Killed/22 Injured
Rough Rider, Mar. 15-May 6, 2025: 208 Killed/341 Injured
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The Costs of War Project @costsofwar.bsky.social · 15/09/2026
“The so-called ‘War on Terror’ never ended in Yemen,” said Costs of War director Stephanie Savell on a new report from Yemen-based @mhren.bsky.social, in collaboration with Costs of War. www.commondreams.org/news/us-airs...
commondreams.org
Report Details 500+ Yemeni Civilian Casualties From 2023-25 US Airstrikes | Common Dreams
"The so-called 'War on Terror' never ended in Yemen," said Costs of War Project director Stephanie Savell. "This report will allow people to hold the US government accountable for the deaths and destr...
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The Costs of War Project @costsofwar.bsky.social · 15/09/2026
U.S. allies have borne significant costs in the post-9/11 wars, in terms of both dollars and lives. Besides the U.S., the top 5 countries to send troops to the war in Afghanistan were the UK, Germany, France, Italy, and Canada. costsofwar.watson.brown.edu/paper/costs-...
Table 1: Top Troop Suppliers to Afghanistan as of February 2011 from the report, "The Costs of War to United States Allies Since 9/11".
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The Costs of War Project @costsofwar.bsky.social · 11/09/2026
Read the overview of the true costs of the post-9/11 wars. costsofwar.watson.brown.edu/overview
costsofwar.watson.brown.edu
OVERVIEW: The True Costs of the Post-9/11 Wars
The Costs of War Project has created this resource that compiles our past research to provide an overview of the costs of the U.S. post-9/11 wars. The “post-9/11 wars” refers to United States-led mili...
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The Costs of War Project @costsofwar.bsky.social · 11/09/2026
Opportunity costs: less public sector spending on health, education, clean energy and more. [5/6] costsofwar.watson.brown.edu/costs/econom...
costsofwar.watson.brown.edu
Other Costs to the U.S. Economy
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The Costs of War Project @costsofwar.bsky.social · 11/09/2026
Financial costs: $8 trillion (and counting) [4/6]
Pie chart: Estimate of U.S. Post 9/11 War Spending, in $ Billions FY2001-FY2022
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The Costs of War Project @costsofwar.bsky.social · 11/09/2026
Indirect deaths: 3.6-3.8 million (and counting) [3/6]
Text: At least 4.5 million people have died in post-9/11 war zones as a result of war and its reverberating impacts.
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The Costs of War Project @costsofwar.bsky.social · 11/09/2026
Direct deaths in post-9/11 war zones: 905,000 - 940,000 [2/6]
Chart: Human Cost of Post-9/11 Wars: Direct War Deaths in Major War Zones, Afghanistan & Pakistan (Oct. 2001 – Aug. 2021); Iraq (March 2003 – March 2023); Syria (Sept. 2014 – March 2023); Yemen (Oct. 2002-Aug. 2021) and Other Post-9/11 War Zones
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The Costs of War Project @costsofwar.bsky.social · 11/09/2026
Nearly 3,000 Americans died as a result of the attacks on 9/11. Twenty-five years later, the impacts of the post-9/11 wars have reverberated both at home and abroad. A few of the costs: [THREAD] costsofwar.watson.brown.edu/overview
Text: 25 years after the attacks of 9/11, our research illustrates the costs of two and a half decades of war.
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Reposted by The Costs of War Project
Democracy Now! @democracynow.org · 10/09/2026
Post-9/11 wars fought by the United States killed millions of people when direct and indirect deaths are counted.
democracynow.org
4.7 Million Dead, $8 Trillion: Counting the Devastating Human & Economic Costs of the Post‑9/11 Wars
As part of our weeklong coverage marking the 25th anniversary of the September 11 attacks and the launch of the United States’ so-called war on terror, we take a look at the human, financial and envir...
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
Read the New York Times’s coverage of the report by @johnismay.bsky.social: www.nytimes.com/2026/09/10/u...
nytimes.com
U.S. Airstrikes Targeting Houthis Killed Scores of Civilians in Yemen (Gift Article)
A new report found that most of the deaths occurred during President Trump’s second term as his administration pursued the Iran-backed group.
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
“It’s important that we continue to account for the civilian lives lost, harmed and disrupted in Yemen and other U.S. war zones,” notes Costs of War director Stephanie Savell. [9/10]
Text: "The so-called ‘War on Terror’ never ended in Yemen,” said Stephanie Savell, Director of Costs of War. “It’s important that we continue to account for the civilian lives lost, harmed and disrupted in Yemen and other U.S. war zones. This report will allow people to hold the U.S. government accountable for the deaths and destruction it has caused in Yemen in support of the Israeli government’s wars since 2023.”
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
Other enduring and long-term effects of the U.S. attacks on civilians are the loss of breadwinners through death or disabling injury, and the destruction of livelihoods when farms, shops, factories, workshops, and small enterprises were damaged or destroyed. [8/10]
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
To document the civilian toll, Mwatana for Human Rights’ field team conducted site visits to several airstrike locations and carried out 59 interviews with survivors, family members of victims, eyewitnesses, first responders, and other primary sources. [7/10]
Text: "I lost my home, and I lost my son, who is still in the morgue refrigerator. I have not been able to bury him because I cannot afford the costs of retrieving his body from the hospital." — Interview with a Yemeni man conducted five months after a 2025 U.S. attack that resulted in the loss of his home and his 17-year-old son.
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
These figures are higher than what the Pentagon has disclosed to Congress, citing 153 civilians killed and another 243 injured during Operation Rough Rider. [6/10]
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
More recently, “Operation Rough Rider,” carried out during President Donald Trump’s administration from March 15 – May 6, 2025, resulted in the majority of the civilian casualties cited in the paper: 208 killed and 341 injured. [5/10]
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
The first, “Operation Prosperity Guardian,” was conducted during President Joe Biden’s administration from December 18, 2023 – January 19, 2025 and resulted in five civilian deaths and 22 Injuries. [4/10]
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
The paper examines two operations that were launched in response to attacks by the Houthis, concurrent with the Israeli government war in the Gaza Strip that began on October 7, 2023, which was directly supported by the United States. [3/10]
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
From December 2023 to May 2025, 46 U.S. airstrike incidents resulted in at least 576 civilian casualties: 213 people were killed and 363 were injured, including 50 children and 25 women. [2/10] costsofwar.watson.brown.edu/paper/YemenA...
An image of an incident site (a basement) in Sana’a City following U.S. airstrikes under "Operation Rough Rider" on March 23, 2025. Photo taken by a Mwatana researcher in Sana’a City Governate.
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The Costs of War Project @costsofwar.bsky.social · 10/09/2026
Breaking: U.S. airstrikes in Yemen Since Dec. 2023 resulted in hundreds of civilian casualties, according to a new report from Yemen-based @mhren.bsky.social in collaboration with Costs of War. [THREAD]
December 2023-May 2025
Civilian Toll of U.S. Airstrikes in Yemen: 213 Killed and 363 Injured
Operation:
Prosperity Guardian, Dec. 18, 2023-Jan. 19, 2025: 5 Killed/22 Injured
Rough Rider, Mar. 15-May 6, 2025: 208 Killed/341 Injured
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The Costs of War Project @costsofwar.bsky.social · 09/09/2026
“All of these reverberating costs of war also lead to casualties.” Costs of War’s co-director Stephanie Savell talks to @news.dw.com on the costs of 25 years of the “War on Terror”: www.youtube.com/watch?v=P97p...
youtube.com
The War on Terror 25 years on: Did it make us safer? | DW News
YouTube video by DW News
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The Costs of War Project @costsofwar.bsky.social · 09/09/2026
Twenty-five years later, our research examines the high costs of the post-9/11 wars.
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The Costs of War Project @costsofwar.bsky.social · 09/09/2026
In the 25 years since 9/11, the U.S. has spent $8 trillion dollars fighting wars in the name of counterterrorism. costsofwar.watson.brown.edu/overview
Pie chart: Estimate of U.S. Post 9/11 War Spending, in $ Billions FY2001-FY2022
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