On February 9, 2013, 200 armed Filipinos belonging to the so-called Royal Sulu Army occupied parts of Lahad Datu in Sabah (North Borneo) and declared ownership of the whole territory in the name of the Sulu Sultan Jamalul Kiram III.
Sabah has been part of the Malaysian Federation since 1963. In response, the Sulu Sultanate has continued to assert its historical and proprietary claims over the territory. Moreover, the Philippines has yet to officially drop its claim that Sabah is part of its territory.
For three weeks, the Malaysian government asked the armed Filipinos in Lahad Datu to surrender. But finally on March 5, the military attacked the group and ended the occupation. The clash and subsequent military operations reportedly led to the killing of more than 60 individuals, including 8 members of the Malaysian police.