The US and South Korea have a robust, if delicate, alliance

South Korea is separated from North Korea by a demilitarized zone

There’s a lot of symbolism going on in the South Korean flag: a red-and-blue yin-yang represents the harmony created by opposing forces, and the white background represents peace and purity. The four black trigrams symbolize the four elements. The CIA World Factbook has more info on this country of 52 million, including where it ranks globally on obesity rates, energy consumption, and more.

There are roughly 7,000 Korean restaurants in the US

A generation ago, the average American had never heard of kimchi or bulgogi, but these days, Korean cuisine is booming in the United States. And it’s no accident. This one-minute explainer video from Morning Brew reveals what role the government played in boosting the popularity of Korean food abroad, and what it all has to do with foreign debt and soap operas.

US defense spending peaked during the Korean War at 13% of GDP

In 1953, during the Korean War, US defense spending reached 13.58% of GDP—more than three times today’s level. That peak marked the most militarized moment of the Cold War, and spending has never returned to that level since.

A timeline of Russia-North Korea relations

North Korea and Russia have often had aligned interests, yet their relationship has experienced many highs and lows. Al Jazeera’s explainer outlines the key events defining Russia-North Korea relations. Russia and North Korea were allies during...

Questions about the US' commitment to its allies may have sparked a new nuclear age

Some US allies—from Warsaw to Seoul—are reevaluating their security amid doubts over American nuclear commitment, signaling the possibility they may want to acquire their own weapons.

The US and the USSR backed opposing sides in dozens of proxy wars during the Cold War

To avoid direct confrontation, the superpowers supported rival factions in conflicts around the world—including in Korea, Vietnam, Angola, and Afghanistan.

A digital archive of the Korean War

The Korean War largely shaped the evolution of the Cold War in Asia. Explore the Wilson Center’s digital collection of primary sources—including essays, profiles, popular documents, and a timeline—to learn about the Korean War. In 1945, the...

US–Cuba contentious relations began long before the Cold War

Long before the revolution and missile crisis, US involvement in Cuba stretched back over 150 years—rooted in slavery, sugar, and shifting imperial ambitions. This short video traces how cycles of intervention and neglect shaped the island’s modern history.

An interactive visualization tracking 25 years of US-North Korea nuclear negotiations

From 1990 to 2017, the United States and North Korea engaged in a complex series of bilateral and multilateral negotiations. This interactive page, compiled by CSIS Beyond Parallel, displays a record of provocations and negotiations between the two...

The United States has had a tumultuous relationship with Cuba since its 1959 revolution, highlighted by a nuclear crisis and a decades-long trade embargo.

How life ranks in South Korea

As South Korea developed over the last half of the 20th century, quality of life soared. The country now outperforms the world average when it comes to education, health, and civic engagement, according to the OECD’s Better Life Index. In this dashboard, you can see where South Korea ranks in terms of housing, jobs, income, and more, and compare it against other developed countries.

Relationships between countries have become more peaceful since the rules-based order was established

Our World in Data monitors bilateral relationships on a spectrum from open rivalry to "positive peace"—deep cooperation and mutual protection. In 1945, no countries had highly cooperative security relationships. Today, nearly a fifth do.

Seven of South Korea's presidents have left office before their term ended

Recently removed President Yoon Suk Yeol isn’t the first South Korean leader to face turmoil at home. As this Voice of America piece shows, at least seven of the country’s 20th-century heads of state saw their political careers (and, in some cases, their lives) come to an abrupt and sometimes violent end.

Trade between the US and China has increased in recent decades

After China joined the World Trade Organization in 2001, the trade partnership between the US and China bloomed. But it's not without pros and cons, including lower prices for US consumers and higher profits for US corporations alongside the loss of American jobs due to import competition and multinational companies moving overseas.

A critic on what BTS' return from military service means

Sarah A. Son, a lecturer in Korean Studies at the University of Sheffield, argues that K-pop icons now recognize how intertwined their band's identity is with that of their country. In her review of Netflix's documentary "BTS: The Return," Son suggests the group, after serving in the military, is more attuned to the pressures of such a specific kind of stardom.

Hear how the US and Iran went from close allies to bitter adversaries after the 1979 revolution

Covering five decades of conflict and diplomacy, this podcast examines key flashpoints—from the Iran-Iraq War and the 1983 Beirut bombings to Iran's use of proxy forces and cyberattacks—offering insight into one of the most consequential and complex rivalries in modern geopolitics.

The National Security Council advises the president on foreign policy and national defense

Created in 1947, the NSC coordinates military, diplomatic, and intelligence policy matters. Chaired by the president, it includes key Cabinet officials and senior advisers who shape American responses to global crises and security threats.

Davos has been home to many pivotal moments in international diplomacy

Davos provides a forum for unlikely meetings: FW de Klerk met with Nelson Mandela and Mangosuthu Buthelezi during South Africa’s transition from apartheid, North and South Korea held their first-ever ministerial talks, and East and West German leaders discussed reunification.

The consequences of dating as a K-pop idol

Seunghan, a star from the boy band RIIZE, experienced intense backlash for leaked photos of him kissing a woman when he was a trainee. Many fans were outraged by the images and found his behavior to be against their expectations of a wholesome K-pop idol. This article provides details about this case and gives other examples of idols who experienced a fallout with fans for having personal relationships.

The League of Nations was the predecessor to the UN—and the US never joined

The League of Nations—established in 1920 after World War I—was the first global organization aimed at maintaining world peace. Although US President Woodrow Wilson championed its creation, the United States never joined.

The history of ARPANET and how it helped the US military during the Cold War

President Dwight D. Eisenhower established the Advanced Research Projects Agency in 1958, which recruited scientists to design the first large-scale computer network to support the American military during the Cold War. Academics would use the network to communicate via email among several US research universities.

How did segregation in the US affect blood donations?

When the US established its first nationwide network of blood banks in 1941 with the hopes of restoring the dwindling reserves of military members, it was quick to emphasize blood donated by Black Americans wouldn't coat the veins of white servicemen. Historians say this policy was meant to appease white Southerners who believed Black blood was inferior to their own.This policy was leaked to the press that same year.

The US protects free speech more broadly than any other democracy

Well-known First Amendment lawyer Floyd Abrams explains that the US offers stronger free-speech protections than even close democratic allies, where hate speech is criminalized, libel laws favor plaintiffs, and a "right to be forgotten" can erase truthful information from the internet.

When German submarines lurked in US coastal waters

During World War II, German submarines (also known as U-boats) prowled the Southern coast of the US in 1942 and 1943, sinking more than 60 ships and killing 600 Allied soldiers. The campaign is less well-known, since the major battles in Stalingrad and Midway happened at the time. Several of these submarines and the ships they sank are now popular diving spots.

The US lags behind other developed countries in math and science scores

The Programme for International Student Assessment, administered every three years by the OECD to 15-year-olds, scores US students below the OECD average in math (465 vs. 472) and only slightly above average in science (499 vs. 485). These figures place US pupils in the lower half of developed nations.

The Kent State massacre sparked a nationwide student strike

In 1970, the Ohio National Guard opened fire on Kent State University students—peacefully protesting the Vietnam War—and killed four. The tragedy led to more widespread nationwide protests, shutting down more than 200 colleges and universities. The event led to a Pulitzer Prize-winning photo of a slain and grieving student.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

Roughly 43 million US borrowers owe roughly $1.7T in student debt, the second-largest source of consumer debt behind mortgages.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

View the ten deadliest tornadoes in US history.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

Experimental hantavirus vaccines and therapies, still under development, have long been funded by the US military.

'Shogun,' a 1980s TV series, helped popularize sushi in the US by stimulating an American interest in Japanese culture.

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

Hear about the 250-year history of the United States Postal Service, complete with some of its strangest deliveries, important innovations, and the figures that made it an American institution.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

Up to a million Girl Scouts sell about 200 million cookie boxes every spring, generating $800 million, largely because refusing a child is frowned upon

The name 'Silicon Valley' arose from the founding of Shockley Semiconductor Laboratory in Fairchild Semiconductor in 1956-57, founded near Stanford University in Palo Alto

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

The concept of phantom limbs, the perception that amputated limbs are still present, dates back to a French military surgeon in the 16th century.

Crows are believed to have intelligence on par with a seven-year-old child and demonstrate complex behaviors, from problem-solving with tools to recognizing human faces.

The identity of the Tank Man in the iconic photo from the 1989 Tiananmen Square protests remains unknown and was possibly killed.

Georgia O'Keeffe's flower paintings are often assumed to be sexual, though the artist claimed she was simply interested in highlighting the beauty of flowers that most people neglect

An investigation suggests a Scottish island became awash in forever chemicals via seafoam and seaspray—raising questions about what that means for the safety of other coastal areas.

The Brothers Grimm were lawyers before they were storytellers, but became interested in fairy tales as they began investigating how rules and customs had been passed down through cultures.

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.

While the sun's gravity keeps the planets in orbit, their gravity also pulls on the sun, causing it and everything else in the solar system to orbit around a mutual balance point called the barycenter—the true center of the solar system.