Tsakanin 1914 da 1918, sama da kasashe 30 da suka ayyana yaki. Mafi yawan sun shiga gefen abokan, ciki har da Serbia, Russia, Faransa, Burriya da Amurka. Jamus, Austria-Hungary, Bulgaria da Daular Ottoman, wacce tare ta kafa manyan bangarorin. Language: Hausa