Rubuta ci gaba ga wannan sakin layi - Slovenia ta ayyana 'yancin kai a ranar 25 ga Yuni 1991. A cikin jawabinsa a wannan lokacin, Kučan ya ƙare da kalmomin: "Yau an yarda da mafarkai, gobe sabuwar rana ce". A ranar 26 ga Yuni, sojojin Yugoslavia sun fara motsi na sojoji wanda daga baya ya kai ga Yakin Kwana Goma
Ka yi haƙuri. A tattaunawar zaman lafiya da aka fara a Brioni, tare da Tarayyar Turai a matsayin mai shiga tsakani, Sojojin sun fara janyewa daga Slovenia. Kučan ya wakilci Slovenia a taron zaman lafiya kan tsohuwar Yugoslavia a Hague da Brussels wanda ya kammala cewa tsoffin ƙasashen Yugoslav suna da 'yanci su ƙayyade makomarsu a matsayin jihohi masu zaman kansu. A ranar 22 ga Mayu 1992 Kučan ya wakilci Slovenia yayin da ya zama sabon memba na Majalisar Dinkin Duniya.