 In April 2015, the German Federal Ministry of Defence assigned Müller the task of managing a group of experts that had been given the job of "searching for weaknesses in the organisational structure of the ministry and the Bundeswehr" in response to criticism of the G36 assault rifle, stating that his expertise qualified him for the role.In 2006, under the management of Klaus-Peter Müller, Commerzbank acquired the shares of Deutsche Bank and Allianz (Dresdner Bank) in the largest European real estate and public finance bank at the time, Eurohypo.In 2009, Commerzbank took over Dresdner Bank under Müller's supervision.