 Complete the following phrase:  On 16 October 1909, Nassau and her sister participated in a ceremony for the opening of the new third entrance in the Wilhelmshaven Naval Dockyard. They took part in the annual maneuvers of the High Seas Fleet in February 1910 while still on trials. Nassau finished her trials on 3 May and joined the newly created I Battle Squadron of the High Seas Fleet. Over the next four years, the ship participated in the regular series of squadron and fleet maneuvers and training cruises. The one exception was the summer training cruise for 1912 when, due to the 