Page "History of Chile" Paragraph 62

However, fears of a conservative restoration in progressive sectors of the army led to another coup in January, which ended with the establishment of the January Junta as interim government while waiting for Alessandri's return.

The latter group was led by two colonels, Carlos Ibáñez del Campo and Marmaduke Grove.

They returned Alessandri to the presidency that March and enacted his promised reforms by decree.

The latter re-assumed power in March, and a new Constitution encapsulating his proposed reforms was ratified in a plebiscite in September 1925.