Sri Lanka Navy
The Sri Lanka Navy (SLN) (Sinhala: ශ්රී ලංකා නාවික හමුදාව, romanised: Śrī Laṃkā nāvika hamudāva; Tamil: இலங்கை கடற்படை, romanised: Ilaṅkai kaṭaṟpaṭai) is the naval arm of the Sri Lanka Armed Forces and is classed as the country's most vital defence force due to its island geography. It is responsible for defending the maritime borders and interests of the Sri Lankan nation.