On Sutomo's orders the decapitated bodies were disposed of in the sea, the women were thrown in the river. The death toll of the "Bersiap" period runs into the tens of thousands. The bodies of 3,600 Indo-Europeans have been identified as killed. However more than 20,000 registered Indo-European civilians were abducted and never returned. The Indonesian revolutionaries lost at least 20,000, often young, fighting men. Estimates of the number of Indonesian fighters killed in the lead up and during the Battle of Surabaya range from 6,300 to 15,000. The Japanese forces lost around 1,000 soldiers and the British forces registered 660 soldiers, mostly British Indians, as killed (with a similar number missing in action). The actual Dutch military were hardly involved, as they only started to return to Indonesia in March and April 1946.