Days before President Trump's visit to Korea, Gwanghwamun Square was swarming with protesters holding signs reading, "No Trump, No War."
Kim Joon-seong, 36, who has actively participated in this movement, came to the site with his group, "Ban Trump's Crazy Action," on Tuesday, the day of Trump's two-day visit.
"His remarks have been incredibly dangerous, such as that he would totally destroy North Korea' and that if war breaks out, thousands will die on the Korean peninsula," Kim Joon-seong, 36, told The Korea Times.
"This does not just concern North Korea, but also the South. As the president of South Korea's main ally, these were very irresponsible claims."
Kim's disapproval of Trump not only stemmed from his North Korean rhetoric but also his general view on human rights issues.
Regarding this, Kim expressed his frustration with Korean politicians.
"It doesn't make sense for them to greet Trump without criticizing the discriminatory remarks he has made against women and racial minorities," Kim said.
And when Kim came to Gwanghwamun Square on Tuesday, he was upset by the new scenery of the square, surrounded by a wired fence and police bus barricades.
Pointing to the wire fence, Kim said, "President Moon Jae-in has referred to himself as the candlelit president, but now his government is obstructing us from freely expressing ourselves, a basic human right provided under the constitution. I'm very disappointed."
The main alliance against Trump which Kim is a part of consists of over 200 liberal civic organizations.
And while the members were unified in their efforts to preserve peace and keep war out of the Korean peninsula, they were not exactly together when it came to Trump.
"I don't oppose Trump's visit, but more so his rhetoric against North Korea ― he has spewed incendiary words against North Korea and about war," 62-year old Yeo In-cheol who leads the preparatory committee for the Peace Treaty Action Solidarity said.
"Our organization was not formed to oppose Trump, but to oppose war. We are a group in pursuit of peace and we are calling for a peace treaty between the U.S. and North Korea," Yeo continued. "A war with just conventional arms would be catastrophic ― skyscrapers, apartments would collapse, and cause great loss of life. If nuclear war were to break out, Korea would no longer be a place where humanity could live. Not only that, it could spread to include China and Russia, essentially becoming a third world war."
With this in mind, Yeo and his group plans to continue promoting peace in Korea.