Why Maritime Drones Are Crucial for Taiwan’s Security

If deployed effectively, uncrewed maritime systems could provide Taiwan with a cost-effective way to offset China’s massive naval power.

Since late May, China has sharply accelerated what it claims to be law enforcement and survey operations in the waters east of Taiwan. Ostensibly a response to the launch of maritime delimitation talks by Japan and the Philippines — which Beijing has condemned as infringing on its maritime rights — the unprecedented deployment of Chinese government vessels (naval, coast guard, and research) has highlighted China’s ability to threaten Taiwan’s strategic Pacific periphery.

In contrast to the shallow and contested Taiwan Strait, these deep Philippine Sea waters enable operational depth. They serve as vital conduits for global trade, digital infrastructure, and submarine movement. While some analysts see China’s operations in this area as rehearsals for a blockade of Taiwan, others view them as a way for Beijing to change the status quo. In an August report, the Center for Strategic & International Studies said China could be looking to establish “a semi-permanent presence” and exercise “some form of jurisdiction east of Taiwan.”

Maritime drones — including uncrewed surface vessels (USVs) and autonomous underwater vehicles (AUVs) — offer Taiwan a realistic way to counter China’s expanding operations. By deploying swarms of inexpensive, expendable sea drones, Taiwan can strengthen surveillance and complicate Chinese military planning without risking crewed assets.

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