In the early 1990s, Möller started researching World War II in his free time, publishing from 2003 to 2007 in Arps Verlag Weißenfels.

He retired in 2014, and has since devoted himself to writing a book as a military historian and assisting in the creation of military-historical reconstructions for the detection of explosive ordnance.

He regularly presents his findings in lectures and as a consultant for television productions on the history of Central Germany.

This historic event is commemorated every five years as part of Elbe Day at the official memorial in Torgau.

was part of the successor organization The 69the Infantry Division Next Generation Group since 2016 and was involved in the realization of a commemorative plaque commemorating the fallen of both sides during the battles for Weissenfels in April 1945[7] and the review of history on the occasion of the 62nd anniversary the end of the war in April 2007 by a representative of the Consulate General of the United States of America Leipzig honored with the commemorative plaque of the 69th Infantry Division.