Soviet entry at Unggi

Why Unggi Matters

Unggi was not just a local port action. It was the point where the Manchurian operation and the occupation of northern Korea met. After entering the war against Japan on 8 August 1945, Soviet ground forces attacked Manchuria while the Pacific Fleet moved against northern Korean ports to cut Japanese withdrawal and reinforcement routes.

Park Huiseong’s study identifies the sequence as air attacks on Unggi, Rajin, and Chongjin on 9-10 August, the attack on Unggi on 11 August, and the occupation of Unggi port and city on 12 August. The atlas therefore treats Unggi as the opening node of the northeastern coastal landing axis and links it to the Rajin and Chongjin records.

Meaning of the Port Seizure

Unggi lay near the junction of the Tumen River mouth and the northeastern coastal sea route. Securing the port pressured Japanese movement and supply along the northern coast. It therefore functioned as the opening step toward the Chongjin landing and as the point where the Soviet Manchurian offensive connected to the occupation of northern Korea.