11 years ago on November 23rd, 2010 North Korea fired around 170 artillery shells toward Yeonpyeong Island.
The South Korean military responded by firing back about 80 shells, but the attack left two marines and two civilians dead and 16 marines injured.
Yeonpyeong Island is home to a military base and a small civilian population, located just 3 kilometers from the Northern Limit Line, the maritime border between the South and the North.
Previously referred to as the Yeonpyeong Island artillery "provocation", it was officially renamed a "battle" this year to clearly show that the South Korean military had fought against the North's attack.
On Tuesday, the Marine Corps held a commemorative event at Daejeon National Cemetery to honor the two marines killed in action.
Around a hundred people were at the event, including bereaved families of the deceased marines and top military officials.
The country's defense minister also paid tribute to those who lost their lives and those who fought in the battle.
"Through their honorable sacrifices, our military has been able to create peace, and will keep on creating new peace. We will inherit the combat heroes' will to safeguard our country, and play a leading role in building peace."
He added that the government will do its best to ensure that those who gave the ultimate sacrifice for their country are honored.
Bae Eun-ji, Arirang News.