Grand Fleet Grand Fleet The Grand Fleet was the main fleet of the Royal Navy during the First World War. Formed in August 1914 from the First Fleet and elements of the Second Fleet of the Home Fleets, the Grand Fleet included 25–35 state-of-the-art capital ships. It was initially commanded by Admiral Sir John Jellicoe. He was succeeded by Admiral Sir David Beatty in December 1916. The Grand Fleet was based first at Scapa Flow in the Orkney Islands and later at Rosyth on the Firth of Forth. It took part in the biggest fleet action of the war – the Battle
Battle of the Philippine Sea Battle of the Philippine Sea The Battle of the Philippine Sea (June 19–20, 1944) was a major naval battle of World War II that eliminated the Imperial Japanese Navy's ability to conduct large-scale carrier actions. It took place during the United States' amphibious invasion of the Mariana Islands during the Pacific War. The battle was the last of five major "carrier-versus-carrier" engagements between American and Japanese naval forces, and pitted elements of the United States Navy's Fifth Fleet against ships and aircraft of the Imperial Japanese Navy's Mobile Fleet and nearby island garrisons. This was the largest carrier-to-carrier battle in