<prompt> Bhala okuqhubekayo kwalesi sigaba - Ngemva kwe - Anschluss yango - 1938 phakathi kweJalimane neAustria, iYugoslavia yahlanganyela umngcele wayo osenyakatho - ntshonalanga neThird Reich futhi yaba ngaphansi kwengcindezi eyandayo njengoba omakhelwane bayo babezihlanganisa nemibuso ye - Axis. Ngo-April 1939, i-Italy yavula umngcele wesibili neYugoslavia lapho ihlasela futhi ihlala e-Albania engomakhelwane. Ngemva kokuqala kweMpi Yezwe II, uhulumeni waseYugoslavia wamemezela ukungathathi hlangothi kwawo. Phakathi kuka-September no-November 1940, iHungary neRomania zajoyina i-Tripartite Pact, zavumelana ne-Axis, futhi i-Italy yahlasela iGrisi  <response>: . futhi. Ngalesosikhathi iYugoslavia yayisizungezwe cishe ngokuphelele amabutho e - Axis namabutho awo, futhi isimo sayo sokungathathi - hlangothi empini saba nzima. Ekupheleni kuka-February 1941, iBulgaria yajoyina i-Pact. Ngosuku olulandelayo, amabutho aseJalimane angena eBulgaria evela eRomania, avala umngcele ozungeze iYugoslavia. Ehlose ukuvikela uhlangothi lwayo oluseningizimu ekuhlaselweni okuseduze kweSoviet Union, umashiqela waseJalimane u-Adolf Hitler waqala ukucindezela kakhulu iYugoslavia ukuba ijoyine i - Axis. NgoMashi 25, 1941, ngemva kokubambezeleka okuthile, uhulumeni waseYugoslavia wasayina lesi Sivumelwano. Ezinsukwini ezimbili kamuva, iqembu lezikhulu zeRoyal Yugoslav Air Force ezazishisekela iNtshonalanga, ezazishisekela ubuzwe baseSerbia laxosha umbusi wezwe, iNkosana uPaul, ekuvukeleni kombuso okungenakuphela kwegazi. Babeka umshana wakhe osemusha uPeter esihlalweni sobukhosi futhi baletha uhulumeni wobumbano lukazwelonke owawuholwa yinhloko yeRoyal Yugoslav Air Force, uJenene Dušan Simović. Lokhu kuhlasela kwamthukuthelisa uHitler, owathi ngokushesha wayala ukuba izwe lihlaselwe, okwaqala ngo - April 6, 1941. 