South Korea Upgrades Anti-Ship Missile Decoy System

May 14, 2025

The Defense Post

South Korea’s Defense Acquisition Program Administration (DAPA) has upgraded the MASS countermeasure system to defeat the latest anti-ship guided missiles.

The offboard Rheinmetall system launches decoys to create a smokescreen around a ship for protection from anti-ship missiles.

The decoys generate signals mimicking a ship to deceive a missile’s search functions, such as infrared, electro-optical, laser, and radar.

Deployed in 2014, the MASS, or Multi Ammunition Soft Kill System, has enhanced South Korean naval vessels’ operational capabilities over the years.

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Curtis Stiles - Chief of Staff