In Malaysia, the Malaysian military is responsible for defense of the country's national interests, sovereignty, and territorial integrity; it also has some domestic responsibilities, such as responding to natural disasters; while the Army has traditionally been the dominant service, air and maritime security have received increased emphasis in recent years, particularly anti-piracy operations in the Strait of Malacca and countering Chinese incursions into Malaysia’s Economic Exclusion Zone, as well as addressing other identified shortfalls in air and maritime capabilities; as such, Malaysia has undertaken efforts to procure more modern fighters and ships, improve air and maritime surveillance, expand the Navy’s support infrastructure (particularly bases/ports) and domestic ship-building capacities, restructure naval command and control, and increase air and naval cooperation with regional and international partners such as Indonesia, the Philippines, and the US

Malaysia 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)