 Kutevera Anschluss ya1938 pakati peGermany yeNazi neAustria, Yugoslavia yakauya kuzogoverana muganhu wayo wokuchamhembe kwakadziva kumadokero neGermany uye yakawira pasi pekumanikidzwa kunowedzera sezvo vavakidzani vayo vakazvibatanidza nemasimba eAxis. Muna April 1939, Italy yakazarura muganhu wechipiri neYugoslavia payakapinda ndokuita Albania yakavakidzana nayo. Pakatanga Hondo Yenyika II, Hurumende yeHumambo yeYugoslavia yakazivisa kusava kwayo nekwaakarerekera. Pakati paSeptember naNovember 1940, Hungary neRomania dzakabatana neTripartite Pact, dzichiwirirana neAxis, uye Italy yakapinda muGreece. Yugoslavia panguva iyoyo yakanga yakakomberedzwa chose chose neAxis masimba nevatsigiri vawo, uye chimiro chayo chokusatora rutivi kuhondo chakava chakaoma. Pakupera kwaFebruary 1941, Bulgaria yakabatana neChibvumirano. Zuva rakatevera racho, mauto eGermany akapinda muBulgaria achibva kuRomania, achivhara mhete yakapoteredza Yugoslavia. Nechinangwa chokuchengetedza rutivi rwake rwokumaodzanyemba nokuda kwokurwiswa kwakanga kwava kuda kuitika kweSoviet Union, mudzvinyiriri weGermany Adolf Hitler akavamba kuisa dzvinyiriro huru paYugoslavia kuti ibatanidzwe neAxis. Musi wa 25 Kurume 1941, mushure mekunonoka, Hurumende yeHumambo yeYugoslavia yakasaina chibvumirano ichi. Mazuva maviri gare gare, boka ravatsigiri vokuMadokero, varwi vorudzi rwechiSerbia veRoyal Yugoslav Air Force vakabvisa mutongi wenyika, Muchinda Paul, mukubvuta hurumende kusina ropa. Vakaisa mwana womukoma wake wechiduku Peter pachigaro choumambo ndokuunza hurumende yokubatana kwenyika inotungamirirwa nomukuru weRoyal Yugoslav Air Force, General Dušan Simović. Kuparadzwa kwacho kwakatsamwisa Hitler, uyo pakarepo akarayira kupinda kweYugoslavia, uko kwakatanga musi wa6 April 1941. 