Why Koreans Wave U.S. Flags at Protests: The Story Behind the Streets

What two flags raised together in Seoul's streets reveal about history, sacrifice, and a bond forged in war.

There’s a specific moment during a weekend in Seoul that often takes visitors by surprise. You might be walking along Jongno or near Gwanghwamun Gate, perhaps stopping for a quick photo of the palace or just following signs toward lunch. Then, out of nowhere, you hear it. There's the steady, deep sound of chanting, the crackle of a loudspeaker, and the sharp snap of hundreds of flags caught in the wind. 

You scan the crowd. South Korea's flag, Taegukgi (태극기), fills your view, which makes perfect sense. But then you notice something that feels out of place and you find yourself doing a double-take. Is that really what you think it is? Yes. It's the Stars and Stripes, waving right there in the middle of Seoul. American flags, dozens of them, raised high among a Korean crowd.

It is a striking image, and understanding why it happens means understanding something that no travel brochure will ever tell you.

The War That Never Quite Ended

By the summer of 1950, South Korea was on the verge of disappearing. North Korean forces moved south with incredible speed, pushing the defenders all the way to a tiny perimeter around the port city of Busan. It was the very last piece of the peninsula that wasn't under communist control.

Then came the Incheon landing, MacArthur's audacious gamble that shattered the North's supply lines overnight and turned the tide of the war. When the armistice finally came in July 1953, the south was intact. 

Technically, the war ended in an armistice instead of a peace treaty, which means the peninsula still lives under a ceasefire. But the Mutual Defense Treaty with the United States, signed that same October, locked the alliance in writing. 

"Freedom is not free." That phrase is carved into the Korean War Veterans Memorial in Washington, and it carries a deep meaning here. It’s a weight that’s hard to put into words if you didn’t live through it yourself, or if you didn’t grow up in a family that survived those times. 

A Family Story I Have Never Forgotten

For me, this is more than just a story from a history book. My grandmother was born in Gaesong, a city that is now just across the border in North Korea, in a place she could never visit again. She happened to be visiting relatives in Incheon when the 38th parallel was drawn, and that one moment changed her life forever. Just like that, the road back to her home was gone.

When war broke out and the fighting swept south, she joined the tide of refugees all the way to Busan. After the armistice, she made her way back to Incheon and built her life there. For me, Busan and Incheon have never been abstractions. They are places I know through her.

There is another part of this story that has always stayed with me. My grandmother had an older brother. He was the only son, the one everyone looked to for the family’s future. He was still in high school when the war broke out, and his mother and sister couldn't even bear the thought of him going off to fight. They stayed together as refugees, moving from place to place just trying to survive.

Then one morning he was gone. He left a note. It said, simply, that his friends were all going to fight, and he could not stand by while they did. That he would do his part and come back. The family searched for years. Once, somewhere, someone said they had seen his face. But he never came home.

He was likely one of Korea's hakdo-byeong (학도병), the student soldiers. During the height of the war, tens of thousands of teenagers volunteered to fight. Many of them headed straight to the front lines with no official rank or dog tags, still wearing nothing but their school uniforms.

Almost every Korean family carries a story like this. I think about that note often: "I will do my part and come back." He was just a boy, yet he left everything behind. The reason his sacrifice actually meant something was that so many others showed up to help. Because the South held on and Incheon was retaken, my grandmother was able to live her life in a free country. Americans and UN forces from all over the world came to a place they didn't have to, and they did it anyway.

When I see those two flags raised together in Gwanghwamun Square, I see a family's debt that can never truly be repaid. To be honest, I'm older now than he ever got to be. Some days, I feel a quiet sense of guilt because I haven't done my part to protect the freedoms I enjoy today. 

What the Two Flags Mean: More Than Politics

The Taegukgi is so much more than just a national flag. Its white background stands for peace, while the central circle represents the balance of opposing forces, and the four trigrams symbolize the elements that keep life in motion. It feels like a flag specifically designed to hold conflicting ideas together. This seems perfect for a country that has had to navigate more contradictions than most throughout its history.

To outsiders or even some younger Koreans, seeing it waved alongside the Stars and Stripes might look like imported American politics or mere boomer nostalgia. But that misses the point entirely.

In this context, seeing the 두 flags together isn't about foreign influence. It’s a powerful reminder of what it was like to fight for freedom side by side when everything was on the line. These flags represent the U.S.-Korea alliance that kept the South free, showing a fierce commitment to keeping that bond strong. For many, the motto "We go together" is a lived truth rather than just a slogan.

The Taegukgi Rallies: A Movement Finds Its Name

The term "Taegukgi rallies" entered Korean public consciousness during the political earthquake of 2016–2017, when conservative protesters gathered in enormous numbers carrying the national flag. The Taegukgi became shorthand for a particular identity: patriotic, anti-communist, pro-alliance. The U.S. flag rose with it, the two banners completing a sentence that needed no translation. 

The pairing surged again during the upheaval surrounding former President Yoon Suk-yeol. Supporters at rallies began picking up styles from American protests, like red hats and English slogans, creating a sense of urgency that feels familiar to conservative movements worldwide. In the social media era, political styles travel fast. What we see on the streets of Seoul is still very much a Korean debate, but it sometimes shows up wearing a recognizable international look.

Aerial view of a massive crowd filling the Gwanghwamun area in 2025

The New Faces of an Old Movement

Here is the detail that genuinely surprises people who haven't been paying close attention: these are not just crowds of elderly pensioners anymore.

For years, the conventional wisdom was that Taegukgi rallies skewed heavily older, driven by the wartime generation and their descendants. That changed in late 2024. By 2025, young Koreans in their twenties and thirties began showing up in large numbers, citing concerns about the kind of authoritarian pressure that Koreans have historically fought to resist, and a feeling that their perspective deserves more coverage than it currently receives.

This generational shift is far from random. It’s actually a highly organized effort. Groups like Jayu Daehak (자유대학, Freedom University), which is a prominent conservative youth organization led by students, have played a major part in mobilizing these crowds. By using smart social media campaigns, they’ve managed to take the flag-waving movement from the older generation and bring it onto university campuses and major city streets.

Grandparents and college students, marching in the same column, holding the same two flags. It’s a scene where the phrase "We go together" happens in a very literal way, as two different generations find common ground on the street.

Instagram에서 이 게시물 보기

송송(@song_song0513)님의 공유 게시물

Where to See the Protests in Seoul

Routes might change from week to week, but the protests in the city usually pull crowds toward a few familiar areas. On weekends, the northern route typically runs from Daehakro or Dongdaemun through Jongno and Jonggak to Gwanghwamun Square. This area is surrounded by the palace and marked by the statue of Admiral Yi Sun-sin, and on the biggest days, it fills up with tens of thousands of people.

Another route moves through Gangnam and Sinnonhyeon, with protesters marching past luxury towers and bright K-pop billboards. In Hongdae, the protests have a younger and more bohemian feel, though they usually fade away as the Saturday night energy of the city takes over. Using Google Maps, Naver Maps, and Papago will help you navigate these areas. You’ll find that the crowds are orderly and the spirit is real. If you understand the context, the history of Korea is visible in every march.

Young mourners at a Seoul gathering, holding flags with red balloons reading ‘Charlie Kirk' in 2025

(A brief local note: Writing about these scenes, I'll admit to a quiet unease. Ongoing legislative discussions in Korea—including proposed bills that would restrict public challenges to certain electoral processes, and measures touching on speech about foreign nations—have created a more cautious atmosphere for open commentary. The flags on the street and the debates in the legislature are part of the same unfolding story. I share this as a resident observing from the ground.)

Korean Word of the Day

"동맹 (dong-maeng)"

Literally "alliance"—but in Korean political life, this word carries a weight no English translation quite captures. It implies not just a signed treaty but a shared fate: what happens to one side happens to both.

한미 동맹 (han-mi dong-maeng)—the U.S.-Korea alliance—is invoked here the way Americans might invoke the Constitution: foundational, earned in blood, not to be traded away lightly.

Example: 

"한미 동맹은 한국 현대사의 핵심이에요."

(Han-mi dong-maeng-eun han-guk hyeon-dae-sa-ui haek-sim-i-e-yo.)

"The U.S.-Korea alliance is at the heart of modern Korean history."

When you see those two flags raised together in the streets of Seoul, you are watching 동맹 made visible—not as policy, not as posturing, but as memory and trust. As the living proof that freedom, as that memorial in Washington quietly reminds us, is not free.

💬 Join the conversation

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