Yakin Ogaden wani hari ne na soja na Somaliya tsakanin Yuli 1977 da Maris 1978 a kan yankin Ogaden na Habasha, wanda ya fara da mamayewar Somaliya na Habasha. Tarayyar Soviet ba ta amince da mamayewa ba kuma ta dakatar da goyon bayanta ga Somaliya, maimakon fara tallafawa Habasha; Amurka, akasin haka, ta dakatar da goyon bayanta ga Habasha kuma ta fara tallafawa Somaliya. An ceci Habasha daga babbar gazawa da asarar yanki na dindindin ta hanyar jigilar kayayyakin soja (darajar dala biliyan 7), isowar sojojin Cuba 16,000, da masu ba da shawara na Soviet 1,500 da kuma brigades biyu daga Kudancin Yemen, kuma an tura su don karfafa Harar. 'Yan Habasha sun yi nasara a Dire Daar, Harwa da Jijiga, kuma sun fara turawa sojojin Somaliya a hankali daga yankin Ogaden. A watan Maris na shekarar 1978,' yan Habasha sun kai ga mamayewar Ogaden, sun dakatar da goyon bayansu ga Somaliya, maimakon haka sun fara tallafawa Habasha; Amurka, akasin haka, ta dakatar da goyon bayanta ga Habasha kuma ta fara tallafawa Somaliya.
Yakin Ogaden