The China–North Korea border is an international border separating China and North Korea, extending from Korea Bay in the west to a tripoint with Russia in the east. The total length of the border is 1,352 kilometers (840 mi). The current border was created by two secret treaties signed between China and North Korea in 1962 and 1964.
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Sino-Korean border in the context of Dandong
Dandong is a coastal prefecture-level city in southeastern Liaoning, in the northeastern region of China.
It is the largest Chinese border city, facing Sinuiju, North Korea, across the Yalu River, which demarcates the Sino-North Korean border. To the southwest of the city, the river flows into Korea Bay. Dandong has therefore had a dynamic history because of its strategic location for the northeast's rich natural resources and because of its convenient access to the ocean. It is designated as a major export production centre for the province, and is a port city connected by rail with Shenyang and Sinuiju. A significant amount of trade with North Korea flows through the city.
View the full Wikipedia page for Dandong