Rubuta ci gaba ga wannan sakin layi - Timur ya ci Bayezid a yakin Ankara
, yana fara yakin basasa tsakanin 'ya'yansa maza <unk> lokacin da aka sani da "Ottoman Interregnum". Yin amfani da halin da ake ciki, Junayd ya kai hari ga 'yan'uwan Aydınid, Isa da Umur II, waɗanda Timur ya maido da su. A farkon 1406, Isa da Umur sun mutu kuma Junayd shi ne mai mulkin mulkin tsohon Aydınid. Kamar dukkan sarakunan yankin, Krista da Musulmai, Junayd ya kuma kasance mai himma a yakin basasa tsakanin 'ya'yan Bayezid İsa, Süleyman, Musa da Mehmed, wanda ya sauya amincinsa sau da yawa. Ya goyi bayan İsa a kan Mehmed, kuma ya zama bawa ga Süleyman. Kokarinsa na ci gaba da cin gajiyar rikice-rikicen don fadada ikonsa da 'yancin kansa ya tilasta Suleiman ya aike shi a matsayin gwamnan lardin Ohrid a Rumeli a 1410. Bayan hambarar da Suleiman da mutuwarsa a 1411 a hannun ɗan'uwansa Musa, Junayd ya koma Anatoliya kuma ya kwace Smyrna, amma dole ne ya yarda da ikon Mehmed. A lokacin da Mehmed bai kasance a Rumeli ba don yaƙin neman zaɓe a kan Musa, Junayd ya sake samun 'yancin kansa kuma ya kai wa sarakunan maƙwabta hari. A sakamakon haka, a cikin 1414 Mehmed ya jagoranci haɗin gwiwar yanki a kan Junayd. Mahaifiyar Junayd ta sami damar ceton ransa, amma an sake kwace Junayd kuma aka tura shi zuwa Rumeli a matsayin gwamnan Nicopolis. Daga can, ya shiga cikin tawayen Mustafa Çelebi wanda bai yi nasara ba, har sai da Byzantines suka yarda su tsare shi da Mustafa a 1416.