As of 2026, the ROK Navy is significantly enhancing its maritime domain awareness and anti-submarine warfare (ASW) capabilities through the full induction of the P-8A Poseidon and the ongoing integration of MH-60R Seahawk helicopters. These assets are a vital component of the "Korea Air and Missile Defense" (KAMD) axis of the national "Three-Axis" defense strategy.

REPUBLIC OF KOREA NAVAL AVIATION • Daehanminguk Haegun

Personnel: ε70,000 (including ε29,000 Marines). Status: Operational / High-Readiness. Strategy: Maritime security, anti-submarine warfare, and sea-based ballistic missile defense (BMD) integrated into the Three-Axis Defense System.

• AIRCRAFT 26 combat capable platforms.

Maritime Patrol (ASW / ISR):

• 6 Boeing 737 (P-8A Poseidon) (Full fleet delivered by early 2026).
• 15 Lockheed P-3C/CK Orion.
  • (Note: These 21 airframes provide the primary long-range sub-surface and surface tracking capability for the ROKN).

Tactical & Utility Transport:

• 5 Cessna F406 Caravan II.

• HELICOPTER 46+ active airframes.

Anti-Submarine Warfare (ASW) / Surface Strike:

• 24 AgustaWestland Lynx Mk99 / Mk99A.
• 8 Leonardo AW159 Wildcat.
• 14 Sikorsky S-70 / MH-60R / UH-60P (7 additional MH-60R airframes currently on-order for delivery).
  • (Note: The MH-60R "Romeo" is the Navy’s newest high-readiness ASW asset, augmenting the existing Lynx fleet).

Tactical Transport & Multi-role:

• 8 Sikorsky UH-60P Black Hawk.
• 7 Bell 205 (UH-1H Iroquois).
• (Marines: ε27-29 MUH-1 Surion medium transport helicopters).

Training (Helicopter):

• 3 Bell 505.

• UNCREWED MARITIME & AERIAL SYSTEMS

Uncrewed Underwater Vehicles (UUV):

• ASWUUV (Extra-Large Anti-Submarine Warfare UUV).

Intelligence, Surveillance & Reconnaissance (UAS):

• ε28 Chung Shyang II (Medium-altitude ISR).

• SURFACE-TO-AIR MISSILES (SAM - SHIPBORNE INTEGRATED)

Long-range / Ballistic Missile Defence:

• SM-2 Block IIIA/B (Deployed on Sejong the Great cruisers and Chungmugong Yi Sun-Sin destroyers).
• SM-3 Block IA (Aegis-integrated BMD interceptor).

Point-defence & Short-range:

• Haegung (K-SAAM) (Indigenously developed; deployed on Daegu-class frigates and Marado LHD).
• RIM-116 RAM.
• RIM-7P Sea Sparrow.

• COASTAL DEFENCE & POINT DEFENCE

Coastal Defence Missiles:

• RGM-84 Harpoon (Truck-mounted launchers).
• Hae Sung I (Surface-to-surface/Coastal variants).

Anti-Aircraft Artillery (Guns):

• 20mm M167 Vulcan (Towed; primarily used by Marine formations for coastal point defense).
• 30mm Goalkeeper CIWS / Phalanx Block 1B (Standard shipborne point defense).

Strategic Note: By 2026, the ROK Navy has moved toward a more proactive deterrent posture, transitioning from a coastal defense force to a "blue-water" capable navy with a robust aerial wing. The procurement of the P-8A Poseidon and MH-60R significantly improves its ability to counter North Korea's growing submarine-launched ballistic missile (SLBM) threat. Furthermore, the ROKN is a key pillar of the Korean Air and Missile Defense (KAMD), with its Aegis-equipped destroyers providing sea-based BMD layers alongside land-based THAAD and M902 Patriot systems. Domestic industrial expansion, led by groups like Hanwha Ocean, continues to support the sovereign production of advanced maritime weaponry and uncrewed systems.