Manchuria is a historical region located in Northeast Asia, primarily in modern-day China, but it also includes parts of Russia and North Korea. It is bordered by the Amur River to the north and the Liao River to the south. The region is known for its rich natural resources, including coal and iron, and has been a significant area for agriculture. Throughout history, Manchuria has been home to various ethnic groups, including the Manchu people, who established the Qing Dynasty in the 17th century. The region has experienced various conflicts and changes in control, particularly during the Sino-Japanese War and the Russian Civil War. Today, it is an important industrial and agricultural area in China.