 Complete the following phrase:  In the early 1940, March began the preparatory works, as he also planned the partial remodeling of the fortress outside of the sports complex, too. He incited archaeological survey and invited German architectural historian Daniel Krencker to study the excavations. Within the scopes of the Nazi expansion of the megaprojects, and augmentation of the German historic role and importance in this region, Krencker praised Marchs project as the artistic dream, which represents rare and major German cultural act which will contribute to the old German glory of Belgrade. Just few days after German scientists left the fortress, 