Kammala jumla mai zuwa: Milne ya dauki nauyin hare-hare da yawa don tallafawa abokansa na Faransa da Serbia tare da iyakance albarkatu. Hare-haren da ya kai a Lake Doiran a cikin bazara na 1917 ya kashe mutane 5,000 da suka ji rauni sosai, kashi ɗaya cikin huɗu na duk asarar da Birtaniyya ta yi a duk lokacin yakin Salonika. Wani harin Birtaniya a cikin kwarin Struma ya fi nasara. Sojojinsa suna fama da cutar zazzabin cizon sauro. Sarkin Italiya ya nada Milne a matsayin Babban Jami'in Order of Saints Maurice da Li'azaru a ranar 31 ga Agusta 1917 kuma ya ci gaba zuwa Knight Commander na Order of Bath a ranar 1 ga Janairu 1918. Kodayake an sake mayar da Milne a Lake Doiran a watan Satumbar 1918, rukunin Faransa da na Serbia sun yi nasarar kayar da sojojin Bulgaria a
Yaƙin Dobro Pole wanda ya faru a wannan watan. Daga nan Bulgaria ta sanya hannu kan yarjejeniyar tsagaita wuta.