The prosecution team consisted of Israeli State Attorney Yonah Blatman, lead attorney Michael Shaked of the Jerusalem District Attorney's Office, and the attorneys Michael Horovitz and Dennis Gouldman of the International Section of the State Attorney's Office. According to prosecutors, Demjanjuk had been recruited into the Soviet army in 1940, and had fought until he was captured by German troops in Eastern Crimea in May 1942. He was then brought to a German prisoner of war camp in Chełm in July 1942. Prosecutors claimed that Demjanjuk volunteered to collaborate with the Germans and was sent to the camp at Trawniki, where he was trained to guard prisoners as part of Operation Reinhard. The principal allegation was that three former prisoners identified Demjanjuk as "Ivan the Terrible" of Treblinka, who operated the petrol engines sending gas to the death chamber. The prosecution alleged that Demjanjuk had listed Sobibor on his US immigration application in an attempt to cover up his presence at Treblinka.