Taiwan is under constant threat of Chinese invasion—something that could become more likely now that America has its own supply of computer chip components.

WASHINGTON (AP) — President Donald Trump is due to announce Monday that chip giant Taiwan Semiconductor Manufacturing Co. plans to invest $100 billion in the United States, according to a person familiar with the plans who was not authorized to speak publicly.

Enforcing the tariffs on Taiwan would be difficult, and they wouldn’t necessarily be enough to meaningfully increase semiconductor manufacturing in the United States, experts told WIRED.

Taiwanese computer chip giant TSMC pledged $100 billion to boost production in the US as part of a four-year project announced alongside President Trump on Monday. TSMC, which supplies powerful chips needed for artificial intelligence to major firms like Apple and Nvidia,