For instance, military campaigns of the Wehrmacht were documented in special propaganda exhibitions (Sieg im Westen (summer 1940), Griechenland und Kreta 1941 – Bild und Beute (March/May 1942) and Kampfraum Südost (summer 1944)). As with all museums in Vienna, the most valuable collections were evacuated once the allied bombings on Vienna began in autumn 1943. These measures proved absolutely necessary, since the Arsenal and the Südbahnhof were directly hit by allied bomber groups on 10 September and 11 December 1944, severely damaging or completely destroying not only the museum building but also several depots.[8] Toward the end of the war, in particular during the so-called Vienna Offensive, the Arsenal grounds, too, were heavily damaged.