By autumn 1915 Viviani's government was in trouble following the resignation of Delcassé as Foreign Minister, the unsuccessful western front offensive and the entry of Bulgaria into the war. Although he survived a no confidence vote by 372–9, there were many abstentions. General Gallieni agreed to replace Millerand as Minister of War, but other French politicians refused to join Viviani's government, so he resigned on 27 October 1915. Viviani served as Vice-President of the Council of Ministers (Deputy PM) and Gallieni as War Minister in Aristide Briand's new ministry.