Hagati ya 1914 na 1918, ibihugu birenga 30 byatangaje intambara. Benshi bifatanije n’inzuzi z’inshuti, barimo Seribiya, Uburusiya, Ubufaransa, Britayini, Ubutaliyani na Amerika. Yarwanywaga n’Ubudage, Otirishiya-Hongiriya, Buligariya hamwe n’Ubwami bwa Ottoman, abo hamwe hamwe bose hamwe bashizeho ububasha bwo hagati. Language: Rwandi