 Rendered obsolete with the emergence of the new dreadnoughts in late 1906, she underwent an extensive refit in 1909, after which she served with the Atlantic Fleet.She was assigned to the Second Home Fleet in 1912 as part of the 5th Battle Squadron, and was temporarily fitted with a makeshift ramp for experiments with naval aircraft until 1913.Following the outbreak of World War I, the squadron was attached to the Channel Fleet before "London" was detached in March 1915 to participate in the Dardanelles Campaign, supporting ANZAC forces as they landed at Gaba Tepe and Anzac Cove on 25 April 1915.