Japan Expands Naval Capabilities with New Ships

On January 26, 2025, Japan announced significant enhancements to its naval fleet, focusing on amphibious and transport ships. These vessels will support troops stationed on the Ryukyu Islands, a strategic chain located between Japan and Taiwan. The new additions include Landing Ship Utility (LSU) vessels designed to transport troops and cargo to these islands. This expansion reflects Japan’s commitment to strengthening its maritime defense capabilities amid regional tensions.
New Ships and Enhanced Frigates
Japan’s navy is set to deploy four Nihonbare class LSUs to navigate the shallow waters surrounding the Ryukyu Islands. Each LSU can carry 300-400 troops or 130-190 tons of cargo, including vehicles. These ships will regularly deliver supplies, ensuring that troops stationed on the islands remain well-equipped. In addition to the LSUs, Japan is also constructing two 3,500-ton support ships and four maneuver support vessels to bolster its operational capabilities.
Alongside the amphibious ships, Japan is advancing its frigate program. The country plans to build 24 new FFM Mogami class missile frigates, procured in two batches of twelve. Currently, Japan has ten of these 3,900-ton frigates in service. The Mogami class is notable for its multi-mission capabilities, equipped for both mine-hunting and mine-laying operations. Each ship features a 127mm gun, eight anti-ship or cruise missiles, and advanced anti-aircraft systems, including SeaRAM missiles and Chu-SAM missiles.
The Mogami class frigates are designed with stealth in mind, featuring a shape that minimizes radar detection. They are equipped with advanced sensors for anti-submarine warfare and electronic warfare tasks. With a top speed of 55 kilometers per hour and a crew size of approximately 90, these ships utilize automation to enhance efficiency. Originally intended as destroyers, the design was adapted to serve as multi-mission frigates, reflecting Japan’s innovative approach to naval warfare.
Japan currently operates 36 destroyers and plans to add at least twenty new frigates by 2030. The construction of these new vessels will continue into the 2030s, further solidifying Japan’s position as a formidable maritime power in the region. As Japan pioneers ship automation technologies, it contrasts with the U.S. Navy’s challenges in implementing similar systems in its Littoral Combat Ships, which faced significant operational issues. Japan’s advancements in naval technology highlight its strategic focus on enhancing maritime security and operational readiness.