sentences:  DASA (from "Deutsche Aerospace Aktiengesellschaft") was founded on 19 May 1989 by the merger of Daimler-Benz's aerospace interests, MTU München, and Dornier Flugzeugwerke.During December 1989, Daimler-Benz acquired rival German aerospace consortium Messerschmitt-Bölkow-Blohm (MBB), merged it into DASA.During March 1990, Daimler-Benz initiated a major restructuring of the new group, integrating the previously separate companies into five product groups; Aircraft, Space Systems, Defense and Civil Systems/Propulsion.