Soviet assault on Maoka

Part of the Soviet Japanese War of World War II

South Sakhalin Operation

Date	19-22 August 1945
Location	Maoka, Sakhalin
Result	Soviet victory

Belligerents

Soviet Union

Japan

Commanders and leaders

M.A. Purkayev

Kiichiro Higuchi

Strength

3,400

2 battalions

Casualties and losses

77 killed

300 killed
600 captured

600-1,000 civilians killed (mainly by naval bombardment)

The Soviet assault on Maoka (Maoka Landing, Russian: Десант в порт Маока) was carried out at the port of Maoka (now Kholmsk), Southern Sakhalin during August 19-22, 1945, by the forces of the Soviet Northern Pacific Flotilla () of the Pacific Fleet during the South Sakhalin Offensive () of the Soviet–Japanese War at the end of World War II. It was the second amphibious assault on South Sakhalin, after the Soviet assault on Tōro () (now Shakhtyorsk) on August 16.

Japanese forces in the port and the city had two battalions of infantry, artillery and mortar units, and coast guard. All of them were subordinate to the commander of the 88th Infantry Division of the Fifth Area Army.

After a Soviet submarine and aviation reconnaissance on August 17, on August 19 an amphibious force of the 113th Rifle Brigade and a battalion of marines of total force of 3,400 moved out from Sovetskaya Gavan and landed at Maoka early morning on August 20. Due to heavy fog there was no aviation support, and instead the city was subject to heavy artillery bombardment from ships. Due to initial surprise the coastal facilities were quickly occupied, but later the Soviet troops, according to the Soviet sources, were met with fierce Japanese resistance. However the Japanese side states that their military tried to avoid engagement keeping defensive positions, busy with evacuation of equipment (described as "looting the city" in some Soviet sources) and guiding the evacuation of about 18,000 civilians.

After the success of the assault, during August 22-24 Soviet reinforcements arrived from Vladivostok and proceeded to clear the Japanese forces from Southern Sakhalin. According to refugees already evacuated from the area, Soviet forces carried out fierce naval bombardment and artillery strikes against Japanese installations in Maoka, Shikuka and civilians who were awaiting evacuation. Nearly 1,000 civilians were killed in this attack. Witnesses reported that to a high level of fatalities among civilians were caused by the confusion of European-style kokumin-fuku, men's approved civil attire, with military uniforms.

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