Chips

It is not easy to see a national security threat to the United States in Ukraine. The best explanation is that if Russia takes Ukraine they will not stop there but continue to invade other countries eventually one of the NATO countries which leads to a confrontation between the US and Russia which leads to nuclear war. Others understand that as much as Putin would like to bring back the glory days of the Soviet Union he has learned in Ukraine that it is not easy and he would have second thoughts. In regards to China it is easy to see how the national security of the US is at stake. At this time almost all of the high end chips are made in Taiwan and if China had control of Taiwan they could force the US to continue to buy goods from China if the US wanted access to the high end chips. As of now the US could be bullied into a confrontation with China using Taiwan as the bargaining chip (pun intended). If the US takes immediate steps to start producing its own high end chips then China taking Taiwan will not directly effect the national security of the US. The main chip company in Taiwan is Taiwan Semiconductor Manufacturing Corporation (TSMC). The US would have to bring some of their technical people to the US to start a new company to make high end chips. Once this is done the US will no longer have any ties to Taiwan.