The question of whether the United States would intervene militarily if China were to attack Taiwan remains a pivotal uncertainty in Taipei. While most analysts anticipate Washington’s involvement, significant gaps exist in the practical military coordination between the two forces, highlighting a critical vulnerability in Taiwan’s defense posture.

Since the United States severed formal military ties with Taiwan in 1979 to establish diplomatic relations with China, joint training exercises between the US and Taiwanese militaries have ceased. This interruption means there has been no combined command structure or integrated operational planning established for decades. US military leaders are currently unable to visit Taiwan, which limits their direct knowledge of the terrain and operational environment, a factor considered essential for effective strategic and tactical planning.

Mark Montgomery, a former commander of the US carrier strike group based in Japan, described the situation as “clinically insane,” emphasizing the strategic risk of two allied forces prepared to fight a common adversary without coordinated training or communication protocols. Roy Kamphausen, a former China strategist for the US Joint Chiefs of Staff, noted that reconnaissance of the battlefield is a fundamental prerequisite for command and control, which neither side currently conducts together.

The absence of joint training also means there is no shared communication system, including code-sharing or standardized operating procedures. This lack of interoperability extends to both technology and language, presenting considerable challenges in battlefield identification and command coordination. Experts warn of an increased risk of friendly fire incidents stemming from these deficiencies, particularly in aircraft identification and fire support requests, which rely on established, compatible protocols.

Beyond the technical shortcomings, military analysts highlight the psychological and relational aspects of preparedness. According to retired US Marine officer Grant Newsham, trust and familiarity between forces are vital components of combat effectiveness. He stressed that establishing working relationships cannot begin immediately prior to—or during—a conflict but requires time and sustained engagement.

The reluctance to deepen military ties stems from China’s policy stance. Beijing considers Taiwan a part of its territory and perceives any US-Taiwan military cooperation as a provocative threat. In response to high-profile political visits such as Nancy Pelosi’s 2022 trip to Taiwan, China launched a series of ballistic missile tests around the island as a demonstration of force. This reaction underscores the delicate balance facing US and Taiwanese officials: expanding military cooperation risks escalating tensions, while maintaining the status quo leaves both vulnerable in a potential conflict.

At present, joint activities between US and Taiwanese forces are limited and discreet. Approximately 500 Taiwanese troops train annually at the Camp Grayling Training Center in Michigan, utilizing the Great Lakes to simulate Indo-Pacific maritime conditions. Taiwanese F-16 pilots also conduct training exercises at Luke Air Force Base in Arizona. However, these efforts fall short of the comprehensive, integrated readiness needed to confront the possibility of conflict with China.

In summary, the current state of US-Taiwan military coordination reveals a significant blind spot. Without enhanced joint training, communication interoperability, and command integration, the ability of both forces to operate effectively in a crisis remains uncertain. As tensions across the Taiwan Strait continue to simmer, this gap presents a strategic challenge with profound implications for regional security.