 In October 1920 , the battleship King George V arrived to replace Marlborough in the Mediterranean Fleet . Marlborough then returned to Devonport , where she was paid off for a major refit that took place between February 1921 and January 1922 . During the refit , range dials were installed , along with another range @-@ finder on the rear superstructure . The aircraft platform was removed from " B " turret . Long @-@ base range @-@ <unk> were installed on " X " turret . After completing the refit in January 1922 , Marlborough was recommissioned and assigned to the Mediterranean , where she replaced Emperor of India . She served as the second command flagship until October . Following the Treaty of Lausanne in 1923 , the Allied countries withdrew their occupation forces from Turkey ; Marlborough was involved in escorting the troop convoys out of Constantinople . 
