Noktundo

Noktundo (/, Noktundo) was an island in the delta of the Tumen River on the border between Primorsky Krai, Russia and North Korea. The area of the island was 32 square kilometres (12 sq mi). Noktundo had been a Korean territory since the 15th century. The Jurchens took notice of this. In 1587 there was a battle fought on this island between the local Koreans and the invading Jurchens. At first, the Jurchens successfully sacked the island and captured 160 Koreans as prisoners. As they crossed the river back to their camp with the prisoners, the famed Korean general Yi Sun-Shin chased after the invaders, rescued 50 Koreans, and defended the island. With his army, he later infiltrated the nearby Jurchen army camp, and captured their leader alive. Due to changes in the canal and sand sediment, the island was eventually adjoined to the north shore, which was part of the Qing dynasty. The island was under Korean control until 1860 when Russia forced the Qing dynasty to cede Outer Manchuria along with Noktundo in the Convention of Peking without any Korean participation. When the Joseon government found this out in the 1880s, this became to the Koreans a matter of protest, as they claimed that the Russians had no authority to do so, and protested against it to the Qing dynasty. In 1990, Soviet Union and North Korea signed a border treaty which mad

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