Ramsay Force 20th December 1942 to the 18th March 1943.
Notes:
British Sumatra Battalion
5th April 1943
The British Sumatra Battalion were moved with the Americans to the Kunhnitkway camp, to lay the sleepers and track to the trace Ramsay Force had prepared, they were moved within three weeks to the 45 Kilo Camp at Anankwin.
Information from British Sumatra Battalian by A.A. Apthorp