In company with six battleships and eighteen destroyers, "Arizona" was sent south again to transit the Panama Canal in January 1921. After meeting up with the Pacific Fleet, "Arizona" continued on to Peru for a week before the two fleets combined to practice battle maneuvers. After a short return to the Atlantic, which included an overhaul in New York, "Arizona", under the command of Jehu V. Chase, returned to Peru in the summer before she began operating from her new home port of San Pedro, California, part of Los Angeles, where she was based until 1940.