Sime Road Camp was the Combined Operations Headquarters of the British Army and Air Force from early December 1941 to 11 February 1942, until the Japanese advance forced the relocation of the headquarters from its compound in Sime Road to Fort Canning. During the Japanese Occupation (1942-1945), this site served as temporary quarters for Prisoners-of-War who either worked in the vicinity or had been posted to work on the “Death Railway”. Towards the end of the war, European and Eurasian civilians were interned here, occupying long wooden huts that were surrounded by a high wire fence.