Rubuta ci gaba don wannan sakin layi - Gwamnatin Young Turk ta sanya hannu kan wata yarjejeniya ta sirri tare da Jamus kuma ta kafa Ottoman-German Alliance a watan Agusta 1914, wanda aka yi niyya ga abokin gaba na Rasha amma ya daidaita Daular tare da bangaren Jamus. Daular Ottoman ta shiga Yaƙin Duniya na 1 bayan "Goeben" da "Breslau" lamarin, wanda ya ba da mafaka ga jiragen ruwa biyu na Jamus waɗanda ke tserewa daga jiragen ruwa na Burtaniya. Wadannan jiragen ruwa sannan - bayan an canza su a hukumance zuwa rundunar sojan ruwa ta Ottoman, amma har yanzu suna karkashin ikon Jamus - sun kai hari ga tashar jiragen ruwa ta Rasha ta Sevastopol, don haka ya jawo Daular zuwa cikin yakin a bangaren Kasashen Tsakiya, wanda ya shiga cikin wasan kwaikwayo na Gabas ta Tsakiya. Akwai wasu mahimman nasarorin Ottoman da yawa a farkon shekarun yakin, kamar Yaƙin Gallipoli da Siege na Kut
, amma akwai kuma koma baya, irin su bala'in Caucasus Campaign da Rasha. Amurka ba ta taba yin yaki da Daular Ottoman ba.