 On 30 October, she was again decommissioned in Kiel, having been replaced by the light cruiser for the minesweeping experiments.She remained in reserve for over a year and a half, until she was reactivated on 5 June 1914 to replace the minelayer , which was at the time going through a major overhaul.After the outbreak of World War I in July 1914, "Nautilus" was classified as a coastal defense mine cruiser.