 Complete the following phrase:  Schlesien served with the High Seas Fleet through the first two years of the war. At the outbreak of the conflict, the ship was deployed to guard the German Bight. She then rejoined the High Seas Fleet to support the battlecruisers that bombarded Scarborough, Hartlepool, and Whitby on 1516 December 1914. During the operation, the German battle fleet of 12 dreadnoughts and 8 pre-dreadnoughts came to within of an isolated squadron of six British battleships. Skirmishes between the rival destroyer screens convinced Admiral Friedrich von Ingenohl that he was confronted with the entire Grand Fleet, and so he broke off the engagement and went back home. Two fruitless fleet advances followed on 1718 and 2123 April 1915. Another followed on 1718 May, and another on 2324 October. In March 1916, Schlesien was employed as a target ship for U-boats. On 2425 April, Schlesien and her sisters joined the dreadnoughts of the High Seas Fleet to support the battlecruisers of I Scouting Group on a raid of the English coast. While en route to the target, the battlecruiser was damaged by a mine. The remaining battlecruisers conducted a short 