The Chilean coup d'état of 1925 took place on January 23, 1925, when the Chilean military overthrew the September Junta. Led by Colonel Marmaduque Grove, the troops arrested the Junta's President, General Luis Altamirano, and then handed the power to General Pedro Dartnell as interim President. The organizers of the coup hoped to recall former president Arturo Alessandri Palma, who had been forced into exile after the September Junta's coming to power. However, General Dartnell ultimately refused to rule alone and formed the January Junta a few days later, handing power to Emilio Bello Codesido. Alessandri only returned from exile on March 20, 1925, putting an end to the junta.