Kammala jumla mai zuwa: Sarrail ya kaddamar da babban hari tsakanin 22 ga Afrilu da 23 ga Mayu, 1917, don daidaitawa da
Nivelle yana kai hari a Aisne. 'Yan Birtaniya sun kai hari a kusa da Lake Doiran a farashin 5,000 da aka kashe da kuma mummunan rauni, kashi ɗaya cikin huɗu na dukan asarar Birtaniya a cikin dukan Salonika Campaign. Wani harin na Burtaniya a kwarin Struma ya fi nasara, kodayake a tsakiyar layin na Faransanci a karkashin Grossetti, wanda aka kaddamar daga Monastir a ranar 9 ga Mayu, ya gaza a cikin cututtuka da gazawar kayan aiki (an yi hukunci mai tsanani ga waɗanda aka kama suna neman abinci). Sarrail ta "Spring Offensive a cikin Gabas" ya jawo asarar rayuka 14,000 don samun nasara kaɗan.