Ka kammala wannan jumla: A wannan lokacin, Yugoslaviya ta ƙi shiga sansanin Axis ya jawo fushin Hitler. Gwamnatin Yugoslavia a karkashin Regent Prince Paul da farko ta goyi bayan shiga Jamus. Amma an yi juyin mulki, aka cire Sarkin, kuma aka naɗa matashi Peter II sarki. Dangane da wannan, Hitler ya ba da umarnin mamaye Yugoslavia, "Aikin Hukunci" ("Strafgericht"). A lokacin da
harin bom na Belgrade, cibiyar babban birnin Yugoslavia ta lalace kuma mutane 15,000 suka mutu kuma suka zama marasa gida. Bam din ya fara 6 ga Afrilu kuma ya ci gaba har kwana hudu har zuwa 10 ga Afrilu.