Echternkamp is contributor to two volumes of the Germany and the Second World War series. He served as the editor of volume IX/II: German Wartime Society 1939–1945: Exploitation, Interpretations, Exclusion. Reviewing the volume in the journal German History, historian Jeff Rutherford notes that it "maintains the extremely high standards set by previous volumes in the series. Each essay provides both an excellent summing up of the literature (at least until 2005) and some fresh insights based on archival research".[2] In the final volume of the series, Echternkamp deals with the aftermath of World War II, "showing how Hitler's war shaped the lives of tens of millions of people beyond the capitulation of the Wehrmacht".[3]
Echternkamp is the co-editor and the contributor to the 2007 volume of essays Die Politik der Nation: Deutscher Nationalismus in Krieg und Krisen 1760–1960 [The Politics of the Nation: German Nationalism in War and Crises 1760–196] where he explores the topic of German nationalism in the post-World War II period in both East Germany and West Germany. A review in H-Net finds this topic to be "the almost uncharted territory" and that Echternkamp finds that "the main proponents of a new national discourse were often conservative historians who had already been professionally active prior to the Nazi regime". Overall, the goal of editors was to investigate how the abstract notion of a "nation" was evidenced in real-world political aims and programs over the two centuries of German history.[4]
Die Bundesrepublik Deutschland 1945/49-1969. (= Seminarbuch Geschichte). Ferdinand Schöningh Verlag / UTB, Paderborn 2013, ISBN978-3-8252-3724-0.
Soldaten im Nachkrieg. Historische Deutungskonflikte und westdeutsche Demokratisierung 1945-1955, De Gruyter Oldenbourg Verlag, München 2014, ISBN978-3-11-035122-4.