The Connection between Taiwan’s East Coast and Chinese Submarines

In recent discussions surrounding China’s military strategy and Taiwan, an intriguing possibility emerges involving China’s use of ballistic missile-armed nuclear submarines (SSBNs) and the need for a more effective second-strike capability. As of 2024, China’s People’s Liberation Army Navy (PLAN) possesses a substantial fleet of submarines, including six Jin-class SSBNs capable of launching JL-2 missiles with ranges exceeding 7,000 km. However, the current submarine bases face significant operational limitations. The base at Jianggezhuang, although historically strategic, is now hindered by its shallow waters and proximity to US, Japanese, and South Korean naval forces, making nuclear submarines more detectable. On the other hand, the Longpo base in the South China Sea offers deeper waters but is constrained by limited expansion capacity.

To address these challenges, one solution proposed is the construction of an underground submarine base along Taiwan’s East Coast. Such a base, utilizing natural caves along the mountainous terrain, would provide excellent cover for submarines and easier access to the Philippine Sea and Pacific Ocean. While Taiwan initially considered such a project for its own defense, this idea could now present an opportunity for China to bolster its nuclear deterrent, enabling its SSBNs to operate more effectively with enhanced stealth and reach.

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