 He remained in infantry until the end of the war.His action was rewarded with Distinguished Service Medal citing that "Colonel Herr showed marked ability as Chief of Staff of the 30th Division in the capture of Voormezeele and Lock Eight in the Ypres section in Belgium in September 1918, and in the breaking of the Hindenburg Line at Bellicourt, France, and the operations against the Selle River and the Sambre Canal from 29 September through 20 October 1918.