A memorial service was held at a national cemetery.
They laid to rest the remains of the members of the Korean Liberation Army, who fought to liberate Korea from Japanese colonial rule.
Many of the heroes died very young.
In his speech, President Yoon emphasized the government will prevent even the slightest negligence of its duty to honor those who've sacrificed themselves for the country.
Lee Shi-hoo tells us more.
On Sunday, a memorial service was held to remember 17 Korean independence fighters whose remains were transferred the same day to Daejeon National Cemetery, an honor reserved for those who have given the highest service to the country.
The ceremony, held at Seoul National Cemetery, came on the eve of the 77th anniversary of Korea's liberation from Japan's colonial rule of the Peninsula from 1910 to 1945.
The memorial service began with a video tribute to the heroes, a floral tribute and incense burning, and the order of merit for national foundation.
It was attended by descendants of the Korean Liberation Army fighters, along with President Yoon, who delivered a memorial speech.
President Yoon said that the government will do all it can to properly honor those who died fighting for Korea's freedom and the independence.
"The freedom we enjoy today stands on the sacrifices of those who threw their lives like candles for freedom and independence of our homeland despite the grim reality and despair of the Japanese colonial era."
Yoon added that he will ensure there is not the slightest negligence in honoring those who sacrificed and committed themselves to the nation and its people.
President Yoon also called out the names of each of the 17 fallen heroes.
The martyrs were part of the Korean Liberation Army, established in 1940 in China with the aim of regaining Korea's independence.
They worked tirelessly for that purpose for years, many of them sacrificing their lives.
Of the martyrs remembered in today's ceremony, 13 died while fighting for independence in China.
Four others died after liberation.
For the last six decades, the fallen heroes' remains had been buried together in a cemetery in northern Seoul.
Since last Thursday, they were placed temporarily at Seoul National Cemetery for a period of remembrance.
After the ceremony, the remains of the fallen fighters were transferred to the National Cemetery in Daejeon, guarded by the police and an honor guard.
There, they will be buried in a section specifically for the members of the Korean Liberation Army.
Lee Shi-hoo, Arirang News.