The last shots in the foggy, frozen Kuriles, 80 years ago this week
While the sweeping battle between the shell of the once mighty Japanese Kwantung Army in Manchuria and Korea, reduced to some 600,000 second-rate troops, and the 1.5 million strong Soviet Far East Command, had officially ended on 16 August after just nine days of fighting, the Reds nonetheless kept pushing to seize territory right up to 2 September, meeting isolated pockets of resistance.
Meanwhile, in the Kurile Islands, a line of 56 volcanic islands stretching from north of Japanese Hokkaido, the northernmost of Japan’s home islands, to just off the tip of the Soviet Kamchatka peninsula, was still very much in play after 16 August.
The battle for the Japanese island of Shumshu, just six miles south of Kamchatka’s Cape Lopatka, raged for a solid week, 18 to 23 August, and cost the Soviets somewhere in the region of 1,500 casualties (exceeding Japanese casualties by a ratio of 3:2) while five of the Soviet’s 16 Lend Leased LCI(L)s used for the landings were lost along with the minesweeper T-152 and torpedo boat TK-565.

The American-made Soviet landing craft DC-5 (former USS LCI-525), hit by Japanese coastal artillery fire and sunk at the landing site at Shumshu.

Destroyed Japanese tanks (“Ha-Go”, type 95) of the 11th Tank Regiment on the slopes of Hill 171 on Shumshu Island (Kuril Islands).

Japanese Lt. Gen. Tsutsumi Fusaki arriving at the Soviet line to negotiate the surrender of his forces in the Northern Kuriles, 22 August 1945. He led 12,227 remaining men of his 91st Division into captivity. He was released to Japan in 1946 and died in his hometown of Kofu in 1959.
Likewise, starting on 11 August, 100,000 Soviet troops swept past the Karafuto line, which had divided the island of Sakhalin into a Russian north and Japanese south since 1905. This began a straight-line ground campaign– sped up by leapfrog amphibious landings, bypassing strong points– that swept up the 20,000 Japanese defenders by 25 August.

Soviet soldiers from the landing force and the minesweeper T-589 (USN type YMS, ex USS YMS-237) in the port of Maoka, Sakhalin. Late August 1945.
In the meantime, on 16 August, Stalin proposed to Truman that, in addition to seizing all of the Kurile Islands, his forces should also occupy northern Hokkaido along a line from Kushiro to Rumoi.
Truman pushed back, saying that Hokkaido would surrender to MacArthur, but that an American base in the future Russian Kuriles sounded like a good idea.
Stalin backed down on the 23rd (the day Shumshu finally fell, showing the Soviets just how hard amphibious warfare against Japanese defenders could be) and said he would stay out of Hokkaido, but that the Americans would not be welcome to a base in the Kuriles.
In the background of this, at least three small Russian Series XI/XIII-Leninist, or L class, submarines and two squadrons of torpedo-carrying Ilyushin Il-4 (DB-3T) twin-engine bombers from Petropavlovsk were running amok off the North coasts of Hokkaido and around Sakhalin.

A Soviet Leninist, or L class, submarine. Smallish (1,400 tons, 273 feet oal) minelaying boats reverse engineered from the raised HMS L55, which sank in the Baltic in 1919, 13 of the type were built and operated by the Soviet Pacific Fleet

The DB-3T, with a suspended 45-36 AV (high-altitude) or 45-36AN (low-altitude) torpedo, looked ungainly because it was ungainly, with a cruising speed hovering around 180 knots with both of its knock-off Gnome-Rhone 14K radial engines glowing. It nonetheless could be effective in the right circumstances and would remain in Soviet/Warsaw Pact use long enough into the 1950s to gain the NATO reporting name “Bob.” Alternatively, it could carry MAV-1 or AMG-type aircraft mines.
They bagged at least eight Japanese ships in the last part of August, even though the IJN Admiralty had passed word that there was a general ceasefire and the rest of the Western Allies had paused offensive operations. Notably, all were sunk outside of the general Kuriles area.
- Cargo ship Daito Maru No. 49 sunk by an unknown submarine on 22 August
- Cable layer Ogasawara Maru (2,774 tons) sunk by L-12 (Capt. Shelgancev) on 22 August
- Coaster Taito Maru (880 tons) sunk by L-12 on 22 August
- Cargo ship Notoro Maru (1229 grt) sunk by aircraft on 22 August
- Coaster Sapporo Maru No. 11 sunk by submarine, likely L-19 (Capt. Kononenko), on 22 August
- Freighter Tetsugo Maru (1403 grt) sunk by L-19 on 23 August
- Sub chaser Giso Maru No. 40 GO (273 grt) sunk in a surface action on 24 August
- Sub chaser CHa-77 sunk by aircraft of unknown origin on 28 August
Ogasawara Maru was perhaps the saddest of these. Built for the Japanese Ministry of Communications in 1905 and capable of 10 knots, the cable layer left Wakkanai on Sakhalin Island on the afternoon of 21 August, carrying 702 evacuees– elderly people, children, and women ordered off the island by the military government– headed to Funakawa.
She never made it, with L-12 sinking her in the predawn of the 22nd while three miles off Mashike, littering the coastline for miles with bodies. Only 62 survivors were recovered.
Likewise, Taito Maru, on the same evacuation route, went down with another 667 souls.
A ninth ship, attacked but not sunk, was the 5,886-ton freighter turned minelayer Shinko Maru No. 2 (former Toyo Kaiun, 2577grt). Crowded with some 3,600 civilians evacuating from Otomari on Sakhalin, she left alone on the night of 20-21 August heading for Otaru Port at a speed of 9 knots. Around 0500 on 22 August, she caught a torpedo in her No. 2 hold and replied with her 12cm and 25mm guns in a surface action in the predawn against an unidentified submarine, which broke contact.
Brushing off a further attack by a torpedo-carrying plane once the sun came up that morning, she limped into Rumoi Port in Hokkaido with 298 bodies aboard and at least 100 known missing.
While Shinko Maru No. 2 was eventually repaired and, returning to commercial service, was still around as late as 1992, her likely attacker, L-19, disappeared on or around 24 August near the La Perouse Strait, thought to have either sunk from damage incurred in the battle or lost to a Japanese minefield (which ironically may have been laid by Shinko Maru No. 2). Her broken hull and the 64 crewmen were the Red fleet’s final loss of WWII.
L-12 returned to Petropavlovsk to honors, having logged two attacks and fired six torpedoes. Converted to a training hulk in 1959, the Russians only retired her fully in 1983.
Sistership L-18 (Capt. Tsvetko) was underway in late August in the area and landed 61 marines and three 45mm guns at Maoka (now Kholmsk), in the then Japanese-held south Sakhalin, the latter secured behind the fence constructed on the rear of the conning tower. She did not document any attacks on shipping. Tsvetkov was awarded the Order of the Red Banner and would later retire as an admiral.
Today, the Japanese government considers the three refugee-packed emergency evacuation ships (Ogasawara Maru, Shinko Maru No. 2, and Taito Maru) to have been attacked post-ceasefire by submarines and aircraft of “kokuseki fumei” (“unknown nationality”), and numerous memorials dot Hokkaido to those vulnerable civilians lost on the ships.
Meanwhile, no Japanese government has recognized the Russian sovereignty over four of the southernmost Kurile Islands (Kunashiri, Etorofu, Shikotan, and Habomai) occupied in 1945, and only marked the end of the state of war between the Soviet Union and Japan in 1956.










































