Kammala wannan jumla: "Blitzkrieg mai sauri da tsananin Axis"
Operation Hukunci a watan Afrilu 1941 ya kama gwamnatin Yugoslavia da sojojin da ba a shirya ba. A cikin makonni biyu, sojojin sun mika wuya, Sarki Peter II da Gwamnatin Royal sun tafi gudun hijira a London tare da wakilan SOE da aka sanya a kasar. Rarraba labarai na tashin hankali, juriya da wahalar farar hula suna isa ga Burtaniya da Yugoslav Government-in-Exile (YGE) waɗanda suka fahimci cewa suna buƙatar cikakken hoto kuma sun shirya aikin kai tsaye zuwa yankin. Kanar S.W. (Bill) Bailey, Shugaban bangaren SOE na Balkan, ya umurci Hudson da ya tuntubi duk wani mai adawa, ba tare da la'akari da kasa, addini ko akidar siyasa ba.