Cika wannan jumla:
Operation Retribution shine bam ɗin Jamus na Afrilu 1941 na Belgrade, babban birnin Masarautar Yugoslavia. Bam din da gangan ya yi niyyar kashe fararen hula a matsayin horo kuma ya haifar da mutuwar fararen hula 17,000. Ya faru ne a farkon kwanakin Yaƙin Duniya na II da Jamusawa suka jagoranci mamayewar Axis na Yugoslavia. An fara aikin ne a ranar 6 ga Afrilu kuma an kammala shi a ranar 7 ko 8 ga Afrilu, wanda ya haifar da raunin farar hula na Yugoslav da soja da kuma kula da su, lalacewar da aka yi a tsakiyar garin da kuma asarar rayukan fararen hula. Bayan ƙaddamar da Yugoslavia, injiniyoyin "Luftwaffe" sun gudanar da kimanta lalacewar bam a Belgrade. Rahoton ya bayyana cewa na bama-bamai da aka sauke, tare da kashi 10 zuwa 14 suna da wuta. Ya lissafa duk abubuwan da aka yi wa bam din, wanda ya hada da: fadar sarauta, ma'aikatar yaki, hedkwatar soja, babban ofishin gidan waya, ofishin telegraph, tashoshin jiragen kasa na fasinjoji da kaya, tashoshin wutar lantarki da barikin. Ya kuma ambaci cewa an jefa bama-bamai bakwai na sama kuma an lalata yankuna a tsakiyar da arewa maso yammacin birnin, wanda ya kunshi kashi 20 zuwa 25 cikin dari na jimlar yankin. Wasu bangarorin harin ba a bayyana su ba, musamman amfani da bama-bamai. Akasin haka, Pavlowitch ya ce kusan kashi 50 na gidaje a Belgrade sun lalace. Bayan mamayewar, Jamusawa sun tilasta wa Yahudawa tsakanin 3,500 zuwa 4,000 su tattara tarkace da bam ɗin ya jawo.