RMS Olympic to Belfast where the passengers disembarked. Following "Olympic"s return to Britain, the White Star Line intended to lay her up in Belfast until the war was over, but in May 1915 she was requisitioned by the Admiralty, to be used as a troop transport, along with the Cunard liners and . The Admiralty had initially been reluctant to use large ocean liners as troop transports because of their vulnerability to enemy attack, however a shortage of ships gave them little choice. At the same time, "Olympic"s other sister ship "Britannic", which had not yet been completed, was requisitioned as a
P400-class patrol vessel P400-class patrol vessel The P400 patrol ships are small vessels of the French Navy. They were designed to accomplish police operations in the French Exclusive Economic Zone. They were built by the "Constructions Mécaniques de Normandie", which specialise in small military craft. Two similar ships are in service in Gabon. The P400 were originally designed in two versions: one armed with Exocet MM38 missiles, and another public service version with a smaller 16-man complement; eventually neither of these versions was commissioned as the Navy chose an intermediate version. All of these craft were based in overseas territories (DOM/TOM) where they