The 1st Battle Squadron was a naval squadron of the British Royal Navy consisting of battleships. The 1st Battle Squadron was initially part of the Royal Navy's Grand Fleet. After World War I the Grand Fleet was reverted to its original name, the Atlantic Fleet. The squadron changed composition often as ships were damaged, retired or transferred. History First World War As an element in the Grand Fleet, the Squadron participated in the Battle of Jutland. August 1914 On 5 August 1914, the squadron was constituted as follows: HMS Marlborough HMS Collingwood HMS Colossus HMS Hercules HMS Neptune HMS St. Vincent HMS Superb HMS Vanguard Battle of Jutland, June 1916 During the Battle of Jutland, the composition of the 1st Battle Squadron was as follows: Sixth Division HMS Marlborough Flagship of Vice-Admiral Sir Cecil Burney; Captain G. P. Ross; HMS Revenge Captain E. B. Kiddle; HMS Hercules Captain L. Clinton-Baker; HMS Agincourt Captain H. M. Doughty; Fifth Division HMS Colossus Flagship of Rear Admiral E. F. A. Gaunt; Captain A. D. P. R. Pound; HMS Collingwood Captain J. C. Ley; HMS St. Vincent Captain W. W. Fisher; HMS Neptune Captain V. H. G. Bernard; 1917 and 1918 Following the Battle of Jutland, the 1st Battle Squadron was reorganized, with Colossus, Hercules, St. Vincent, Collingwood and Neptune all transferred to the 4th Battle Squadron. In January 1917, the squadron was constituted as follows: HMS Marlborough HMS Agincourt HMS Benbow – joined July, 1916 HMS Canada HMS Emperor of India – joined July, 1916 HMS Revenge HMS Royal Oak – joined May, 1916 HMS Royal Sovereign – joined June, 1916 By 1918, Agincourt had been transferred to the 2nd Battle Squadron, and Resolution, Ramillies and Iron Duke had joined the squadron on completion. Second World War For many years the squadron served in the Mediterranean as the main British battle force there. On 3 September 1939 the 1st Battle Squadron, serving in the Mediterranean Fleet, consisted of Barham, Warspite and Malaya, with headquarters at Alexandria, Egypt, under the command of Vice-Admiral Geoffrey Layton. In December 1943 the Squadron was under the command of Vice Admiral Arthur Power. In January 1944 the Eastern Fleet was reinforced by , , , , and seven destroyers. The Admiralty sent this force out to India under the title of the First Battle Squadron. From November 1944, the squadron served in the British Pacific Fleet under the