North Korea's representative provocation since the 1990s.

Gangneung militant infiltration incident (September 18, 1996)
The Shark-class submarine belonging to the North Korean People's Armed Forces Inspectorate has penetrated into the East Coast of Gangneung, Gangwon Province to complete the reconnaissance work, and the submarine is stranded on the net for the purpose of fishing. -> An incident that occurred while landing for land return.

First Battle of Yeonpyeong (June 15, 1999)
It occurred near Yeonpyeong Island in the Yellow Sea to the North Sea Navy provocation, A naval battle between the North and South Korean naval vessels.

2nd Battle of Yeonpyeong (June 29, 2002)
North Korean NLL in Northwest of Yeonpyeong Island in Seohae Yeonpyeong-do North Korea's Patrol Boat Mountain 684 A small-scale battle occurred during the pre-emptive strike of 8.5m.

Cheonan battle incident (March 26, 2010)
PCC - 772, a corvett at about 1km southwest of Baekryeong - do, killed half the ship by a torpedo attack during training.

Yeonpyeong Island shelling (November 23, 2010)
An incident in which the North Korean army bombarded Yeonpyeong Island, one of the 5th regions of the Korean peninsula, without declaring propaganda. The first private residential attack since the truce.