 The British historian Sir Ian Kershaw wrote that he fully agreed with Jäckel on the merits of "Hitler's Willing Executioners"".Kershaw wrote in 2000 that Goldhagen's book would "... occupy only a limited place in the unfolding, vast historiography of such a crucially important topic-probably at best as a challenge to historians to qualify or counter his 'broad-brush' generalisations".In 1996, the American historian David Schoenbaum wrote a highly critical book review in the "National Review" of "Hitler's Willing Executioners" where he charged Goldhagen with grossly simplifying the question of the degree and virulence of German Antisemitism, and of only selecting evidence that supported his thesis.