Suez Maru

In 1943, Suez Maru became one of the most shocking atrocities associated with the Japanese Hellships. A Japanese transport carrying Allied prisoners of war from Ambon toward Surabaya, it sailed in late November with about 650 sick and weakened POWs aboard, most of them British and Dutch. On 29 November 1943, in the Java Sea, the ship was torpedoed by the American submarine USS Bonefish, whose crew had no way of knowing prisoners were aboard. What followed made the disaster especially infamous: many surviving POWs were later deliberately killed by Japanese forces after the sinking. For that reason, Suez Maru is remembered not only as a Hellship loss, but also as a massacre at sea.

The Ship

Suez Maru was a Japanese transport ship used in wartime convoy service. By late 1943 it had been drawn into Japan’s POW transport system, moving Allied prisoners between occupied islands in the Dutch East Indies. Like other ships later remembered as Hellships, it was not marked to show that prisoners of war were aboard, even though it was operating in waters subject to Allied submarine attack. Its name has become especially associated with one of the most notorious crimes committed against POW survivors after a sinking.

The Voyage

According to the POW Research Network Japan, 650 POWs whose health had already been badly damaged by hard labor, starvation, and disease were gathered on Ambon and loaded aboard Suez Maru for transport to Surabaya. These were not healthy men being moved under proper conditions, but prisoners already physically broken by captivity. Their voyage formed part of the wider Japanese system of moving POWs through the islands for labor and administrative control, often with little regard for their survival.

The Attack or Loss

On 29 November 1943, USS Bonefish torpedoed Suez Maru in the Java Sea. The submarine was attacking what appeared to be a legitimate Japanese transport target and had no way of knowing that Allied POWs were on board. Some prisoners survived the torpedoing and reached the water, but the sinking did not end the tragedy. Public historical summaries identify Suez Maru as one of the POW transport ships sunk by Allied forces in East Asia, but its story stands apart because the surviving prisoners were not simply left to perish in the sea; many were intentionally killed afterward by Japanese personnel.

Casualties and Survivors

The broad outline of the loss is clear even when detailed survivor accounting is difficult. POW Research Network Japan states that 650 POWs were aboard when Suez Maru was sunk. The event is historically notorious because prisoners who survived the initial sinking were subsequently massacred, making the death toll effectively total or near-total among the POWs on board. This is why Suez Maru is so often treated differently from other Hellship disasters: the catastrophe did not end with torpedo attack and drowning, but continued as an act of deliberate killing.

Legacy and Memorialization

Suez Maru occupies a singular place in Hellship history because it combines two kinds of wartime crime: the transport of POWs in an unmarked ship through a combat zone, and the subsequent killing of survivors after the ship was sunk. Its story therefore belongs not only to the history of the Hellships, but also to the history of war crimes in the Pacific. In broader historical writing on POW transports, Suez Maru is often cited alongside ships such as Lisbon Maru, Rakuyō Maru, Kachidoki Maru, and Jun’yō Maru, yet its aftermath makes it one of the most disturbing cases of all. For memorial and research purposes, the ship stands as a reminder that the Hellship story includes not only maritime disaster, but also deliberate massacre.

Sources

POW Research Network Japan, Suez Maru summary page.
Imperial War Museums, The Sinking of Prisoner of War Transport Ships in East Asia.

Buyo Maru
Shin’yō Maru
Lisbon Maru
Hōfuku Maru
Hellships Casualty Database
Hellships Survivor Records
Hellships Research Center
Hellships Researcher Guide