Buuxi weedha soo socota: Jiilaalkii 1940/41, Ribbentrop wuxuu cadaadis xoog leh saaray Boqortooyada Yugoslavia si ay u saxiixdo Heshiiska Saddex geesoodka ah, in kasta oo talo ka timid Ergada Jarmalka ee Belgrade in ficil noocan oo kale ah ay u badan tahay inuu horseedi doono in la rido Dhaxal sugaha Crown Prince Paul, Regent Yugoslav. Ribbentrop ujeedadiisu waxay ahayd inuu helo xuquuqda safarka ee waddanka kaas oo u oggolaanaya Jarmalka inay soo duulaan Giriigga. Bishii Maarso 25, 1941, Yugoslavia waxay si diidmo ah u saxiixday Heshiiskii Saddex geesoodka ahaa; maalintii xigtay militariga Yugoslavia waxay xukunka ka tuureen Amiir Paul afgambi aan dhiig ku daadin. Markii Hitler uu amray in la soo duulo Yugoslavia, Ribbentrop wuu ka soo horjeestay, sababtoo ah wuxuu u maleynayay in Wasaaradda Arrimaha Dibadda laga yaabo in laga saaro xukunka Yugoslavia ee la qabsaday. Maadaama uu Hitler aad uga xanaaqay Ribbentrop diidmadiisa duulaankii, wasiirka ayaa seexday maalmihii xigay. Markii Ribbentrop uu soo kabsaday, wuxuu raadiyay fursad uu ku kordhiyo saameynta hay'addiisa isagoo siinaya madaxbanaanida Croatia. Ribbentrop wuxuu doortay Ustaša inuu xukumo Croatia. Wuxuu Edmund Veesenmayer ku guuleystey inuu wadahadal ku soo gabagabeeyo bishii Abriil 1941 Jeneraal Slavko Kvaternik oo ka tirsan Ustaša si uu xisbigiisu u xukumo Croatia ka dib duulaankii Jarmalka. Isaga oo muujinaya sida uu uga xanaaqsan yahay Ergada Jarmalka ee Belgrade, oo kula talisay inaysan Yugoslavia ku cadaadin inay saxiixdo Heshiiskii Saddex geesoodka ahaa, Ribbentrop wuxuu diiday in Ergada Jarmalka ay horay uga soo baxaan Jarmalka ka hor inta aysan ka soo bixin.
waxaa lagu duqeeyay magaalada Belgrade 6-dii Abriil 1941-kii. Shaqaalaha waxaa loo daayay in ay ka badbaadaan qaraxyada sida ugu wanaagsan ee ay awoodaan.