 With the Germans under the command of Marinegruppenkommando West on the move to evacuate by sea, the ongoing "Kinetic" had already scored two successes and was finalizing for the naval offensive in the Bay of Biscay to complete the success.On the night of 22/23 August, under orders from naval intelligence the cruiser HMS "Mauritius" and the destroyers HMCS "Iroquois" and HMS "Ursa" were patrolling Audierne Bay between Brest and Lorient and radar soon picked up a large contact heading towards them.Davis ordered "Iroquois"; the ship closest to the contact, commanded by James Calcutt Hibbard to use the Type 293 radar and relay the information to the rest of the force.