Rubuta ci gaba don wannan sakin layi - A lokacin kaka na 1915 gwamnatin Viviani ta kasance cikin matsala bayan da Delcassé ya yi murabus a matsayin Ministan Harkokin Waje, da rashin nasarar da aka yi a yammacin yamma
da kuma shigar Bulgaria cikin yakin. Ko da yake ya tsira da rashin amincewa da kuri'un da aka kada da 372<unk>9, akwai mutane da yawa da suka ƙi. Janar Gallieni ya yarda ya maye gurbin Millerand a matsayin Ministan Yaƙi, amma sauran 'yan siyasar Faransa sun ƙi shiga gwamnatin Viviani, don haka ya yi murabus a ranar 27 ga Oktoba, 1915. Viviani ya yi aiki a matsayin Mataimakin Shugaban Majalisar Ministoci (Mataimakin Firayim Minista) da Gallieni a matsayin Ministan Yaki a sabuwar ma'aikatar Aristide Briand.