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US GPS Dependence Risks Taiwan Contingency

January 8, 2026

2 min read

Key Takeaways

US approval of $11 billion arms package for Taiwan escalates tensions.
US dependence on GPS may undermine deterrence in a Taiwan conflict.
China's layered PNT approach could give it an operational tempo advantage.
US needs a more resilient system-of-systems approach to PNT.

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Strategic Implications

The US reliance on GPS may indicate a significant vulnerability in the event of a Taiwan contingency, which could be exploited by China through electromagnetic warfare, potentially undermining US deterrence and operational effectiveness. This suggests the need for a more diversified and resilient PNT architecture to mitigate such risks.

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What Happened

Beijing Could Exploit Vulnerability In Electromagnetic Domain

The recent US approval of an $11 billion arms package for Taiwan has heightened tensions across the Taiwan Strait, with Beijing warning of potential military confrontation. However, a more pressing concern is the US’s overwhelming dependence on GPS for positioning, navigation, and timing, which could be disrupted or deceived by China, undermining US deterrence and operational effectiveness. According to Breaking Defense, the US needs to develop a more resilient system-of-systems approach to PNT to mitigate this risk.

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