 The two warships sank on 10 December 1941, in whose memory a Sembawang Memorial was unveiled in Sembawang wharves in 2005.The Dockyard was closed down in January 1942 realising that Japanese could use the Naval Base.The British surrendered to Japanese on 15 February 1942, whose details could be found much more from Memories at Old Ford Factory museum where the surrender was signed.