The first such break came in 1924, when the revolution against the Obregón government in Mexico rose to such intensity that the lives and property of Americans in the country were endangered.

Accordingly, on 17 January, while Richmond was dispatched to Tampico, Sumner and five other destroyers joined Omaha in sailing to Veracruz to protect the resident Americans.

On 1 July 1925, she joined the Battle Fleet and a division of light cruisers from the Scouting Force in departing Pearl Harbor for a cruise to Australia and New Zealand.

After a voyage to Hawaii and operations in that area, conducted in 1928, Sumner returned to her activities along the west coast until the spring of 1930.

Finally, on 12 June 1934, her hulk was sold in accordance with the terms of the London Treaty for the Limitation and Reduction of Naval Armaments.