Usman Haji Muhammad Ali

Usman and Harun were instructed to bomb a power station by their superiors, but they were unable to accomplish that mission since their target was tightly guarded and proceeded to find an easier target—an office building crowded with workers and the general public in Orchard Road.

[5] The team detonated a 12-kilogram high explosive, placed inside a blue traveling bag, inside the MacDonald House at 3:07 pm local time on 10 March 1965, killing three civilians, a Malay Muslim driver (Muhammad Yasin Kesit) and two Chinese women (Elizabeth Susie Choo Kay Hoi and Juliet Goh Hwee Kuang), who were office staff of a bank.

After seizing a motorboat, which broke down at sea, they were rescued by another boat and subsequently handed over to the Singapore Marine Police on 13 March 1965.

[7] They were awarded the status of Indonesian national heroes on 17 October 1968 (the same day they were hanged) and were posthumously promoted to one rank higher than those they held prior to their last operation.

Indonesia has not reversed its naming decision; in response, the Singapore government has banned the ship from entering its waters or docking in the country.