 Complete the following phrase:  On 11 January 1916, Admiral Reinhard Scheer replaced the ailing von Pohl, who was suffering from liver cancer. Scheer proposed a more aggressive policy designed to force a confrontation with the Grand Fleet; he received approval from the Kaiser in February. The first of Scheers operations was conducted the following month, on 57 March, with an uneventful sweep of the Hoofden. On 2526 March, Scheer attempted to attack British forces that had raided Tondern, but failed to locate them. Another advance to Horns Reef followed on 2122 April. On 24 April, the battlecruisers of I Scouting Group conducted a 