John Demjanjuk was a Ukrainian-American who served as a Trawniki man and Nazi camp guard at Sobibor extermination camp, Majdanek, and Flossenbürg. Demjanjuk became the center of global media attention in the 1980s, when he was tried and convicted in Israel after being misidentified as "Ivan the Terrible", a notoriously cruel watchman at Treblinka extermination camp. In 1993 the verdict was overturned. Shortly before his death, he was tried and convicted in the Federal Republic of Germany as an accessory to the 28,060 murders that occurred during his service at Sobibor.

During World War II, Trawniki men were Central and Eastern European Nazi collaborators, consisting of either volunteers or recruits from prisoner-of-war camps set up by Nazi Germany for Soviet Red Army soldiers captured in the border regions during Operation Barbarossa launched in June 1941. Thousands of these volunteers served in the General Government territory of German-occupied Poland until the end of World War II. Trawnikis belonged to a category of Hiwis, Nazi auxiliary forces recruited from native subjects serving in various jobs such as concentration camp guards.