Most military systems use 28nm - 90nm processes, which are more reliable, and which the US can comfortably supply domestically.
Not included: the rare-earth minerals, which are a market almost entirely cornered by the same China. And facilities to process those same rare earth minerals, which are impossible to simply build overnight.
Original comment was talking about China attacking Taiwan to suffocate the US from the supply of chips for its military. China can unilaterally choke the US of rare earths without invading Taiwan
Not included: the rare-earth minerals, which are a market almost entirely cornered by the same China. And facilities to process those same rare earth minerals, which are impossible to simply build overnight.
Original comment was talking about China attacking Taiwan to suffocate the US from the supply of chips for its military. China can unilaterally choke the US of rare earths without invading Taiwan