There is perhaps no more contested question in modern geopolitics than this: when you total everything the United States of America has done — its wars, its coups, its aid, its science, its institutions — does the ledger come out positive or negative for humanity?
It is a question that demands honesty from both its defenders and its critics. Admirers who cite the Marshall Plan cannot pretend the 1953 Iranian coup never happened. Critics who catalogue American war crimes cannot ignore PEPFAR’s 26 million lives saved. The United States is not a hero, nor a simple villain — it is the most consequential nation in modern history, and like all great powers, it has used that position to do tremendous good and tremendous harm, often simultaneously, often for the same underlying motive: its own strategic interest.
This article attempts a full accounting.
Part I: The Case Against — Wars, Coups, and Catastrophe
A Century of Military Intervention
According to the Military Intervention Project at Tufts University’s Fletcher School of Law and Diplomacy — the most comprehensive dataset ever compiled on this subject — the United States has conducted nearly 400 military interventions since 1776, roughly one every seven months for 250 years. More than half of these occurred after 1950. More than a quarter have taken place since the Cold War ended in 1991.
This staggering number requires context: many were small-scale or defensive in nature. But a disturbing number were not.
The Banana Wars: Empire in the Caribbean
Between 1898 and 1934, the United States conducted what became known as the “Banana Wars” — a series of military invasions and occupations across Central America and the Caribbean, largely to protect the business interests of corporations like United Fruit Company. U.S. Marines occupied the Dominican Republic from 1916 to 1924, with the Navy installing its personnel in all key government positions and controlling the Dominican military and police. Haiti was occupied. Nicaragua was occupied. Honduras endured multiple U.S. military interventions between 1903 and 1912.
These were not campaigns for freedom. They were empire under a different name.
Cold War Coups: Overthrowing Democracies
The post-World War II era revealed a darker pattern: the United States systematically overthrowing democratically elected governments it perceived as threats to its interests or ideology.
Iran, 1953. The CIA, working alongside British intelligence, orchestrated the overthrow of democratically elected Prime Minister Mohammad Mosaddegh, who had nationalized Iran’s oil industry. The U.S. installed the authoritarian Shah Mohammad Reza Pahlavi. The blowback was catastrophic — the 1979 Islamic Revolution, 45 years of hostility, a nuclear crisis, and proxy wars across the Middle East that have cost trillions and hundreds of thousands of lives.
Guatemala, 1954. Operation PBSuccess toppled democratically elected President Jacobo Árbenz, who had proposed land reform that threatened United Fruit Company holdings. The CIA installed a military dictatorship. Guatemala subsequently plunged into a civil war lasting until 1996, resulting in an estimated 200,000 deaths and widespread human rights abuses, including genocide against indigenous communities.
Congo, 1960–61. The U.S. orchestrated the assassination of Patrice Lumumba, the Congo’s first democratically elected Prime Minister, and supported the dictator Mobutu Sese Seko. Researchers have linked this intervention to conflicts that have killed over 5 million people in the decades since, with resource wars over cobalt and coltan — materials now found in every smartphone — continuing today.
Brazil, 1964. The U.S. backed a military coup against President João Goulart, ushering in a military dictatorship that lasted until 1985.
Chile, 1973. The Nixon administration worked to destabilize the democratically elected socialist government of Salvador Allende, funding opposition media and political parties, culminating in a military coup led by General Augusto Pinochet. Pinochet’s regime killed over 3,000 people and tortured tens of thousands more. The U.S. supported him throughout.
Operation Condor. Running through the 1970s and 1980s, this was a U.S.-backed network of South American military dictatorships — in Argentina, Chile, Uruguay, Paraguay, Bolivia, and Brazil — that coordinated cross-border kidnapping, torture, and murder with CIA intelligence support. Estimates suggest it killed between 60,000 and 80,000 people.
The CIA has publicly acknowledged involvement in at least seven successful regime changes. The full list of confirmed and strongly suspected U.S.-backed coups and destabilization campaigns is considerably longer. A 2023 study published in the journal Public Choice found that CIA-sponsored regime changes in Latin America resulted in a 10% reduction in per-capita income within five years and massive declines in democratic governance that persisted for at least six years.
The scholars’ verdict is damning: in most cases, the U.S. government cited security interests that were implausible on their face, often understood by decision-makers themselves as pretexts for generating public support. The United States did not face a significant military threat from Latin America at any time in the 20th century.
Vietnam, Laos, and Cambodia: A War Built on Lies
From 1965 to 1973, the United States fought in Vietnam, escalating after the now-disputed Gulf of Tonkin incident, ultimately deploying over 500,000 troops at its peak. Over 58,000 Americans died. Estimates of Vietnamese deaths range from 1.1 to 3.5 million, the vast majority civilian. The U.S. dropped more bombs on Vietnam, Laos, and Cambodia combined than were dropped by all sides during the entirety of World War II.
The U.S. conducted a secret bombing campaign in Cambodia that helped destabilize the country and contributed to the Khmer Rouge’s rise to power — a genocidal regime that killed 1.5 to 2 million of its own people. The U.S. sprayed over 20 million gallons of herbicide — including the notorious Agent Orange — over 4.5 million acres of Vietnamese land, poisoning ecosystems and causing cancers and birth defects for generations.
Iraq and Afghanistan: Wars of Choice
The 2003 invasion of Iraq was launched on the basis of what a Senate investigation confirmed was fabricated intelligence about weapons of mass destruction. The war killed an estimated 150,000 to 1 million Iraqis, depending on the methodology, and created the power vacuum from which ISIS emerged. A study from Brown University’s Watson Institute estimated the post-9/11 wars displaced 38 million people as refugees — exceeding the total displacement of every war since 1900 except World War II.
War Crimes: A Pattern, Not Exceptions
The United States has been responsible for documented war crimes that span decades:
My Lai, Vietnam (1968). U.S. soldiers massacred between 347 and 504 unarmed Vietnamese civilians — elderly people, women, and children — in the hamlet of My Lai. Lt. William Calley, the only person convicted, served three years under house arrest.
Abu Ghraib, Iraq (2003–04). U.S. military personnel and CIA contractors committed systematic torture, sexual abuse, and humiliation of detainees in Abu Ghraib prison. The torture methods — sleep deprivation, stress positions, mock executions, sexual assault — were later revealed to have been authorized at high levels of the chain of command. The George W. Bush administration apologized but characterized the abuses as isolated incidents; Human Rights Watch, Amnesty International, and the Red Cross all disputed this, arguing they were part of a broader pattern. Only low-ranking soldiers faced serious consequences.
Haditha, Iraq (2005). U.S. Marines killed 24 unarmed Iraqi civilians — including women and children — in apparent revenge for a roadside bomb. Most charges were eventually dropped or resulted in minimal sentences.
CIA Torture Program. A Senate Intelligence Committee report detailed systematic torture in CIA black sites, including waterboarding, “rectal feeding,” and other methods that violated the Geneva Conventions. No senior official was prosecuted.
The Pulitzer Center’s investigation, examining the largest known database of possible U.S. war crimes in Iraq and Afghanistan, found 781 cases, of which 151 provided probable cause to believe a crime had occurred. Of the 572 alleged perpetrators in those cases, only 130 were convicted — and even those rarely received lengthy sentences.
The Blowback Problem
The CIA coined the term “blowback” in a classified 1953 report on the Iran coup — the unintended long-term consequences of covert operations that come back to haunt the nation responsible. The catalogue of American blowback is extensive and historically unprecedented:
- The 1953 Iran coup created the conditions for the 1979 Islamic Revolution
- The CIA’s arming of Afghan mujahideen in the 1980s helped create al-Qaeda and the Taliban
- The 2003 Iraq invasion created the vacuum from which ISIS emerged
- The 2011 Libya intervention turned a functioning, if authoritarian, state into a failed state with open-air slave markets
- Every refugee crisis at the U.S. southern border from Honduras, Guatemala, and El Salvador traces directly to U.S.-backed coups and Cold War interventions in those countries
Part II: The Case For — Institutions, Aid, and Innovation
Defeating Fascism and Building a New World
The most important fact in America’s favor is this: the United States mobilized an unprecedented war effort that played a decisive role in defeating Nazi Germany and Imperial Japan — two regimes pursuing world domination through industrialized genocide and brutal conquest.
Before formally entering the war, the U.S. provided essential support through the Lend-Lease program, dispersing some $50 billion in assistance to over 30 countries, keeping Britain and the Soviet Union in the fight. After Pearl Harbor, U.S. industrial production capacity proved decisive. American forces liberated concentration camps, helped end the Holocaust, and enabled the Nuremberg Trials — establishing the principle that there exists an international law of war crimes.
What the U.S. did after the war was arguably as important as what it did during it.
The Marshall Plan: The Greatest Act of National “Generosity” in History
In 1948, with Europe devastated by war, the United States launched the European Recovery Program — the Marshall Plan — transferring $13.3 billion (equivalent to approximately $137 billion today) to 17 European countries. Western European countries’ gross national products rose 15 to 25 percent during the Plan’s operation. It revived industries, rebuilt infrastructure, restored food supply, and helped establish the democratic institutions that define Europe today.
Belgian economic historian Herman Van der Wee concluded the Marshall Plan was a “great success,” giving new impetus to reconstruction, contributing to modernization of industrial and agricultural equipment, and facilitating European integration. Secretary of State George Marshall, who proposed it, became the only general ever awarded the Nobel Peace Prize.
It is important to note that American self-interest drove the Plan — containing communism and creating export markets were explicit goals. But the outcome was genuinely beneficial for hundreds of millions of people.
Building the Liberal International Order
Perhaps the United States’ most enduring gift to the world is the set of international institutions it created and has underwritten since 1945:
The United Nations. U.S. President Franklin Roosevelt championed the concept; the UN Charter was drafted at a conference in San Francisco in 1945. Whatever its flaws, the UN has provided a forum for international diplomacy, authorized peacekeeping operations, and created bodies like UNICEF, UNHCR, and the World Food Programme.
The Bretton Woods System. The International Monetary Fund and World Bank, created at a 1944 conference hosted by the U.S. in New Hampshire, formed the foundation of the postwar global economic order. They promoted stable exchange rates, provided lending for reconstruction, and facilitated the reduction of trade barriers. The resulting global trade regime helped lift hundreds of millions of people out of poverty.
NATO. The North Atlantic Treaty Organization, which the U.S. anchored, provided credible security guarantees that deterred Soviet military expansion into Western Europe. It created what historians have called the “Long Peace” in Europe — the longest period without major European war in centuries. NATO also, crucially, provided a framework that contained a remilitarizing Germany within multilateral institutions, preventing a repeat of the 20th century’s two world wars.
GATT and the WTO. The General Agreement on Tariffs and Trade, which evolved into the World Trade Organization, reduced global tariffs and created a rules-based trading system. Combined with the Bretton Woods financial architecture, this framework helped enable the greatest reduction in global poverty in human history.
PEPFAR: Saving 26 Million Lives
Launched by President George W. Bush in 2003, the President’s Emergency Plan for AIDS Relief (PEPFAR) became the largest program in history dedicated to a single disease. The program provided antiretroviral treatment to millions across sub-Saharan Africa, Southeast Asia, and Eastern Europe. According to U.S. government data, PEPFAR has saved over 26 million lives and prevented 7.8 million babies from being born HIV-positive.
This is, by any measure, one of the most significant humanitarian interventions in history. It is a bipartisan achievement, funded by Republican and Democratic administrations alike, and it represents what American power can accomplish when directed at human welfare rather than strategic dominance.
American global health investments also include the President’s Malaria Initiative, which has saved millions from malaria across Africa, and billions in funding to UNICEF, the World Health Organization, and global vaccination campaigns that helped eradicate smallpox and nearly eradicate polio.
Scientific and Medical Innovation
The United States has been the single largest contributor to global scientific knowledge in the modern era:
- American universities and research institutions have produced more Nobel laureates than any other country. The U.S. National Science Foundation has supported 268 Nobel Prize winners during their careers.
- American researchers were central to the development of vaccines for polio, measles, hepatitis B, and — most recently — the mRNA technology behind COVID-19 vaccines.
- The internet itself was developed by ARPA (now DARPA), an American defense research agency. GPS technology, made freely available to the world, was developed by the U.S. military. The touchscreen, the smartphone, cloud computing, and the modern semiconductor industry all have deep roots in American research institutions and private companies.
- The National Institutes of Health (NIH), with an annual budget of over $40 billion, is the world’s largest funder of biomedical research, producing knowledge that benefits patients globally.
Foreign Aid and Disaster Relief
The United States is consistently the largest absolute donor of foreign aid in the world, though it ranks low as a percentage of GNI among wealthy nations. In fiscal year 2024, total U.S. global health funding reached approximately $12.3 billion. American aid has funded schools, built hospitals, provided food security, and financed development infrastructure across Africa, Asia, and Latin America.
When disasters strike — earthquakes in Haiti, tsunamis in Indonesia, floods in Bangladesh — U.S. military logistics and USAID have repeatedly provided the fastest and most capable first response globally.
Part III: Complicating the Ledger
The Self-Interest Problem
A critical thread running through both the positive and negative columns is that American actions — good and bad — have almost always been primarily motivated by self-interest. The Marshall Plan was designed to contain communism and build export markets. PEPFAR was partly intended to demonstrate that American power was benevolent and stabilize regions of strategic importance. The UN and World Bank were structured to give the U.S. disproportionate influence.
This does not negate the benefits these initiatives delivered, but it does complicate the moral narrative. The U.S. did not create the postwar order out of altruism; it created it to lead the world on terms favorable to itself. That the structure happened to benefit many others is partly intentional and partly a byproduct.
Similarly, the coups and wars were not born of pure malevolence. The U.S. overthrew governments it feared would align with the Soviet Union, or that threatened American corporate interests, or that created political problems at home. This does not excuse the hundreds of thousands who died as a consequence, but it contextualizes the motivations.
The Democracy Hypocrisy
One of the most corrosive contradictions in American foreign policy is the gap between its stated values and its behavior. The United States has championed democracy as a universal ideal while simultaneously overthrowing more democratically elected governments than any other country in modern history. It has denounced human rights abuses while arming regimes that committed them — from the Shah of Iran to Pinochet’s Chile to Saudi Arabia’s absolute monarchy.
This hypocrisy has not gone unnoticed. In a 2026 Pew Research Center survey of 36 countries, a median of 63% of non-Americans said the United States does not promote peace and stability around the world. Majorities in major allied nations — including France, Germany, Australia, Canada, and Mexico — held negative views of the U.S. American credibility as a champion of the “rules-based international order” is severely undermined by its selective application of those rules.
The Counterfactual Problem
Any honest evaluation must grapple with counterfactuals — what would the world have looked like without U.S. power? Without U.S. intervention in World War II, Nazi Germany might have dominated Europe. Without the Marshall Plan, Western Europe might have fallen to communism. Without NATO’s security umbrella, Soviet expansion might have proceeded further west.
Conversely, without U.S. interference, Iran might have remained a functioning democracy. Guatemala might have been spared 36 years of civil war. Iraq might be a stable, if imperfect, state. Chile might have resolved its political tensions through the ballot box rather than the bullet.
Neither set of counterfactuals is provable. The historical record shows both that U.S. power has saved many and that U.S. power has destroyed many.
The Post-Cold War Acceleration
One underappreciated dimension is the difference between America’s Cold War behavior and its post-Cold War behavior. During the Cold War, the U.S. committed terrible acts, but they could at least be understood within the logic of containing a genuinely expansionist Soviet empire. After the Soviet Union collapsed in 1991, the strategic rationale for many interventions evaporated — and yet the interventions continued. The 2003 Iraq War, fought on false pretenses, the 2011 Libya intervention that created a failed state, drone warfare across seven countries — these occurred in an era when the U.S. faced no peer competitor.
The post-Cold War period arguably produced the weakest strategic justifications and some of the most consequential disasters.
The Verdict: Depends where you live.
Is the United States a net positive or net negative to the world?
The honest answer is: it depends on who you are, where you live, and in which era you ask the question.
For Western Europeans, the answer is almost certainly net positive. The Marshall Plan rebuilt their countries. NATO protected them from Soviet expansion. American science created the technologies they use daily. The liberal democratic order the U.S. underwritten has given them the longest period of peace and prosperity in European history.
For Iranians, Guatemalans, Chileans, Iraqis, Vietnamese, Cambodians, Congolese, and the people of dozens of other countries touched by U.S. coups and military interventions, the answer is frequently net negative — sometimes catastrophically so. The CIA’s fingerprints on dictatorships, death squads, and manufactured crises left trails of suffering measured in hundreds of thousands of lives.
For Africans ravaged by AIDS, the answer may be net positive, because PEPFAR represents one of the most consequential humanitarian programs in history. For those affected by U.S. drone strikes in Pakistan, Somalia, and Yemen — often conducted with little accountability and civilian casualties classified as “enemy combatants” — the answer is something else.
The aggregate global assessment may lean slightly net positive, primarily because of three structural contributions that persist regardless of the moral failures alongside them:
- The postwar institutional architecture — the UN, IMF, World Bank, and WTO — created a framework for global cooperation and development that, whatever its flaws and hypocrisies, has been associated with an era of declining great-power war and rising global prosperity.
- The defeat of fascism and deterrence of Soviet expansionism — two genuine historical goods of enormous magnitude, even if subsequent Cold War policies contradicted their moral foundations.
- Scientific and medical innovation — the body of knowledge produced by American institutions has saved more lives than it is possible to count, through vaccines, treatments, and technologies that have spread worldwide.
But these contributions come with caveats that must not be minimized. The United States has killed hundreds of thousands of civilians in wars built on lies. It has overthrown more democracies than any other country in modern history. It has tortured prisoners in its custody, supported genocidal regimes when convenient, and escaped meaningful accountability for nearly all of it.
This is America’s actual legacy in the world — not a shining city on a hill, and not a rogue state, at least yet, but a superpower fully capable of both extraordinary good and extraordinary cruelty, whose choices have shaped the lives of billions. The only honest response to that history is accountability — for the good that deserves recognition, and the harm that demands reckoning.
