Israel on War Alert - Operation Swords of Iron enacted, page-8409

Re: Rigg
"Many researchers consider this number an exaggeration and dismiss Rigg, who teaches at the online American Military University, as publicity-hungry. “This is not a bombshell,” Raul Hilberg, one of the deans of Holocaust scholarship, recently told The Chronicle of Higher Education. “We have known that there were thousands” of men with Jewish roots “in the German army.” Some also have taken aim at the book’s title. After all, Rigg himself says that only 60 percent of the “half-Jews” and only 30 percent of the “quarter-Jews” who served as soldiers were Jewish according to Jewish law. Many didn’t even know they were Jewish because their families had assimilated."
https://www.jta.org/2002/06/04/lifestyle/were-there-jews-in-hitlers-army