Jef­frey Herf is a Dis­tin­guished Uni­ver­si­ty Pro­fes­sor of Mod­ern Euro­pean his­to­ry at the Uni­ver­si­ty of Mary­land. He is the author of Unde­clared Wars with Israel: East Ger­many and the West Ger­man Far Left, 1967 – 1989 (2016). He is a mem­ber of the Amer­i­can His­tor­i­cal Asso­ci­a­tion and the Ger­man Stud­ies Association.