China–North Korea border

From west to east, the two countries are divided by three significant geographical features: the Yalu River, Paektu Mountain, and the Tumen River.^[2]

Dandong, in the Liaoning Province of China, on the Yalu River delta, is the largest city on the border.^[3] On the other side of the river is the city of Sinuiju in North Pyongan Province, North Korea. The two cities are situated on the Yalu river delta at the western end of the border, near the Yellow Sea. Their waterfronts face each other and are connected by the Sino-Korean Friendship Bridge. Both nations have invested in new border facilities, including the long-delayed New Yalu River Bridge and updated customs infrastructure at Dandong, Quanhe, and Nanping from the North Korean border.

There are 205 islands on the Yalu River. A 1962 border treaty between North Korea and China split the islands according to which ethnic group were living on each island. North Korea possesses 127 and China 78. Due to the division criteria, some islands such as Hwanggumpyong Island belong to North Korea even though they are on the Chinese side of the river. Both countries have navigation rights on the river, including in the delta.

North Korea's border with China has been described as its "lifeline to the outside world."^[11] Much of the China-North Korea trade goes through the port of Dandong.^[2]

Chinese cell phone service has been known to extend as far as 10 km (6 mi) into Korean territory, which has led to the development of a black market for Chinese cell phones in the border regions. International calls are strictly forbidden in North Korea, and violators put themselves at considerable peril to acquire such phones.^[12]

Tourists in Dandong can take speedboat rides along the North Korean side of the Yalu River and up its tributaries.^[13]

A common wedding day event for some Chinese couples involve renting boats, putting life preservers on over their wedding clothes, and going to the North Korean border to have wedding photos taken.^[14]

Memory cards and teddy bears are reportedly among the most popular items for North Koreans shopping in Dandong.^[15]

In 2005, the border between North Korea and China was described as "porous".^[11]

The Chinese government transferred responsibility for managing the border to the army from the police in 2003.^[19] Chinese authorities began building wire fences "on major defection routes along the Tumen River" in 2003.^[20] Beginning in September 2006,^[20] China erected a 20-kilometre (12 mi) fence on the border near Dandong, along stretches of the Yalu River delta with lower banks and narrower width.^[2] The concrete and barbed wire fence ranged in height from 8 feet (2.4 m) to 15 feet (4.6 m).^[20]

In 2007 a U.S. official stated that China was building more "fences and installations at key border outposts".^[21] In the same year, it was reported that North Korea had started building a fence along a 10 kilometres (6.2 mi) stretch of its side of the Yalu River, and had also built a road to guard the area.^[22][23]

In 2011 it was reported that China was building fences 4 metres (13 ft) high near Dandong, and that 13 kilometres (8.1 mi) of this new fencing had been built. It was also reported that China was reinforcing patrols, and that new patrol posts were being built on higher ground to give wider visibility over the area. According to a resident of the area: "It's the first time such strong border fences are being erected here. Looks like it is related to the unstable situation in North Korea." The resident also added that previously "anybody could cross if they really wanted" as the fence had only been 10 feet (3.0 m) with no barbed wire.^[24][25]

In 2014, an Australian journalist who visited Dandong reported a low level of border security.^[26][27] In 2015, fencing was reported as the exception rather than the rule.^[28] In 2015, a photojournalist who traveled along the Chinese side of the border commented that fencing was rare and that it would be easy to cross the Yalu river when it was frozen. The same report noted friendly contact between people on opposite sides of the border.^[29] In 2018, a photojournalist drove along the border and described it as "mile after mile of nothing, guarded by no-one".^[30]

Seven people were killed in 2014 by North Korean border guards who had crossed the border in search of money, with locals reporting of North Korean soldiers of crossing the border to commit thefts and murders, especially during winter months when the Tumen River freezes over, allowing for easier access on foot.^[31] Later in 2015, a single rogue North Korean soldier killed four ethnic Korean citizens of China who lived along the border of China with North Korea.^[32]

Rumours of Chinese troop mobilizations on the border frequently circulate in times of heightened tension on the Korean peninsula. According to scholar Adam Cathcart, these rumours are hard to substantiate and hard to interpret.^[33]

A leaked China Mobile document that went viral on Chinese social media on 7 December 2017 allegedly revealed Chinese government plans to construct five "refugee settlement points" along the border to North Korea in Changbai county and Jilin province.^[34][35] This was apparently in preparation for a large influx of North Korean refugees if the Kim regime collapsed in a potential conflict with the United States. The Guardian quoted the document: "Due to cross-border tensions … the [Communist] party committee and government of Changbai county has proposed setting up five refugee camps in the county."^[36]

Border control was significantly strengthened in 2020 due to the COVID-19 pandemic. North Korea closed its border with China in January 2020. By August 2020, the regime had established a 1–2 kilometer buffer zone in front of the border where official permits were required to enter; trespassers would be "fired at without warning".^[37][38] In May 2023, newly constructed double walls and guard posts were observed along hundreds of kilometers of the border, according to satellite photos published by Reuters.^[39]

• North Korean defectors
• China–North Korea relations