A hell ship is a ship with extremely inhumane living conditions or with a reputation for cruelty among the crew. It now generally refers to the ships used by the Imperial Japanese Navy and Imperial Japanese Army to transport Allied prisoners of war (POWs) and rōmusha out of the Philippines, the Dutch East Indies, Hong Kong and Singapore in World War II. These POWs were taken to the Japanese Islands, Formosa, Manchukuo, Korea, the Moluccas, Sumatra, Burma, or Siam to be used as forced labor.
Oryoku Maru in World War II.
Montevideo Maru c. 1941
The "Hell Ship" plaque in San Antonio, Texas dedicated on the 54th anniversary of the SS Shinyo Maru incident.
A prison ship, often more accurately described as a prison hulk, is a current or former seagoing vessel that has been modified to become a place of substantive detention for convicts, prisoners of war or civilian internees. While many nations have deployed prison ships over time, the practice was most widespread in 18th- and 19th-century Britain, as the government sought to address the issues of overcrowded civilian jails on land and an influx of enemy detainees from the War of Jenkins' Ear, the Seven Years' War and the French Revolutionary and Napoleonic Wars.
The beached convict ship HMS Discovery at Deptford. Launched as a 10-gun sloop at Rotherhithe in 1789, the ship served as a convict hulk from 1818 until scrapped in February 1834.
Prison ship Success at Hobart, Tasmania, Australia
1848 Woodcut of the Royal Naval Dockyard, Ireland Island, Bermuda, showing four prison hulks
Interior of the British prison ship Jersey
