[2][3] In 1914 he was placed as Chief of Staff to the II Army Corps, and then as Director of the Artillery Bureau of the Ministry of Military Affairs.

[3] Following the defeat against Turkey in Anatolia, the government of Petros Protopapadakis fell, and Greece was plunged into a political crisis.

A military revolt, led by Venizelist officers, erupted in September 1922, and demanded the resignation of King Constantine I and of Prime Minister Nikolaos Triantafyllakos.

As Zaimis was out of the country, Sotirios Krokidas was appointed as interim prime minister.

[2][5] He was recalled from retirement in 1927 to serve as chairman of the military council for the re-admission of officers purged for political reasons over the previous years.