 Complete the following phrase:  On 12 January 1916, Admiral Reinhard Scheer replaced von Pohl as the fleet commander. Kaiser was present during the fleet advance on 57 March, though this too ended without action. While in port in Kiel, the old pre-dreadnought accidentally collided with Kaiser, though neither ship was seriously damaged. Scheer continued the series of fleet operations practiced by his predecessors; the fleet conducted sweeps of the North Sea on 26 March, 23 April, and 2122 April. The battlecruisers conducted another 