Alleg, who was subjected to waterboarding by French paratroopers in Algeria in 1957, is one of only a few people to have described in writing the first-hand experience of being waterboarded. His book La Question, published in 1958 with a preface by Jean-Paul Sartre subsequently banned in France until the end of the Algerian War in 1962, discusses the experience of being strapped to a plank, having his head wrapped in cloth and positioned beneath a running tap: Alleg stated that he did not break under his ordeal of being waterboarded. He also stated that the incidence of "accidental" death of prisoners being subjected to waterboarding in Algeria was "very frequent". Vietnam War Waterboarding was designated as illegal by U.S. generals in the Vietnam War. On 21 January 1968, The Washington Post published a controversial front-page photograph of two U.S soldiers and one South Vietnamese soldier participating in the waterboarding of a North Vietnamese POW near Da Nang. The article described the practice as "fairly common". The photograph led to the soldier being court-martialled by a U.S. military court within one month of its publication, and he was discharged from the army. Another waterboarding photograph of the same scene, referred to as "water torture" in the caption, is also exhibited in the War Remnants Museum in Ho Chi Minh City. After reports by Lieutenant Colonel Anthony Herbert, investigators confirmed that military interrogators of the 173rd Airborne Brigade "repeatedly beat prisoners, tortured them with electric shocks and forced water down their throats". Interrogators employed a technique called the "water rag", which involved pouring water onto a rag covering the captive's nose and mouth. Chile Based on the testimonies from more than 35,000 victims of the Pinochet regime, the Chilean Commission on Political Imprisonment and Torture concluded that provoking a near-death experience by waterboarding is torture. Khmer Rouge The Khmer Rouge at the Tuol Sleng prison in Phnom Penh, Cambodia, used waterboarding as a method of torture between 1975 and 1979. The practice was perfected by Duch's lieutenants Mam Nai and Tang Sin Hean and documented in a painting by former inmate Vann Nath, which is on display in the Tuol Sleng Genocide Museum. The museum also has on display boards and other actual tools used for waterboarding during the Khmer Rouge regime. Northern Ireland During the Troubles, an ethno-nationalist conflict in Northern Ireland, there were instances of British security forces, including