The Second Fleet was a reserveformation of the Royal Navy that briefly existed before World War I. Formed on 1 May 1912 from the Third Division of the Home Fleet, its ships were manned by a nucleus crew during peacetime, but were intended to be manned by men from the naval schools when mobilised. It was mobilised in late July 1914 as tensions increased between Great Britain and Imperial Germany and remained on active duty until war was declared on 4 August. It reformed the Channel Fleet upon the declaration of war and consisted of the Fifth and Sixth Battle Squadrons, equipped with a total of 15 pre-dreadnought battleships and the majority of the Home Defence Patrol Flotillas.
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