evidence: Elevation highest point: Bukit Timah 166 m lowest point: Singapore Strait 0 m [...] note 1: the Digital and Intelligence Service (DIS) was stood up as the fourth SAF service in October of 2022 note 2: the Gurkha Contingent of the Singapore Police Force (GCSPF) is a paramilitary unit for riot control and acts as a rapid reaction force note 3: in 2009, Singapore established a multi-agency national Maritime Security Task Force (MSTF) to work with law enforcement and maritime agencies to guard Singapore’s waters, including conducting daily patrols, as well as boarding and escort operations in the Singapore Strait; the MSTF is subordinate to the Singapore Navy [...] Singapore is a member of the Five Powers Defense Arrangements (FPDA), a series of mutual assistance agreements reached in 1971 embracing Australia, Malaysia, New Zealand, Singapore, and the UK; the FPDA commits the members to consult with one another in the event or threat of an armed attack on any of the members and to mutually decide what measures should be taken, jointly or separately; there is no specific obligation to intervene militarily (2024)