Indonesian Navy in the context of "Indonesian Marine Corps"

The Indonesian National Armed Forces (Indonesian: Tentara Nasional Indonesia, lit. 'Indonesian National Military'; abbreviated as TNI) are the military forces of the Republic of Indonesia. It consists of the Army (TNI-AD), Navy (TNI-AL), and Air Force (TNI-AU). The President of Indonesia is the Supreme Commander of the Armed Forces. As of 2023, it comprises approximately 404,500 military personnel including the Indonesian Marine Corps (Korps Marinir RI), which is a branch of the Navy.

Initially formed with the name of the People's Security Army (TKR), then later changed to the Republic of Indonesia Army (TRI) before changing again its name to the Indonesian National Armed Forces (TNI) to the present. The Indonesian Armed Forces were formed during the Indonesian National Revolution, when it undertook a guerrilla war along with informal militia. As a result of this, and the need to maintain internal security, the Armed forces including the Army, Navy, and Air Force has been organised along territorial lines, aimed at defeating internal enemies of the state and potential external invaders.

A fast attack craft (FAC), sometimes referred to as a Patrol Torpedo Gunboat (PTG) or a Patrol Craft (PCG), is a small, fast, agile, offensive, often affordable warship armed with anti-ship missiles, gun or torpedoes. FACs are usually operated in close proximity to land as they lack both the seakeeping and all-round defensive capabilities to survive in blue water. The size of the vessel also limits the fuel, stores and water supplies. Their displacements are usually under 700 tons, and they can reach speeds of 25+ knots or 46+ kph.

A FAC's main advantage over other warship types is its affordability. Many FACs can be deployed at a relatively low cost, allowing a navy which is at a disadvantage to effectively defend itself against a larger adversary. A small boat, when equipped with the same weapons as its larger counterpart, can pose a serious threat to even the largest of capital ships. Their major disadvantages are poor seagoing qualities, cramped quarters and poor defence against aerial threats.