One made an imprint on the side of Sussex, from which it could be identified as a Mitsubishi Ki-51 "Sonia". On Wednesday, 5 September 1945 at 11:30 am, HMS Sussex entered Singapore Harbour carrying the Flag of the Rear-Admiral Cedric Holland. General Seishirō Itagaki, the commander of the garrison at Singapore was brought on board, where he signed the formal surrender of the army, thus completing Operation Tiderace, the Allied plan to recapture Singapore.