 Complete the following phrase:  Skirmisher remained leader of the 7th Flotilla, based at Devonport, on the eve of the outbreak of the First World War. Following the outbreak of war, the 7th Flotilla moved to the Humber on the East Coast of Britain. On 15 December 1914, German battlecruisers, supported by the battleships of the main German High Seas Fleet set out on a 