The Pentagon believes that after 2027, the U.S. will be unable to protect Taiwan from a Chinese attack. From Michael Klare at tomdispatch.com:
It May Arrive Sooner Than You Think
When the Department of Defense released its annual report on Chinese military strength in early November, one claim generated headlines around the world. By 2030, it suggested, China would probably have 1,000 nuclear warheads — three times more than at present and enough to pose a substantial threat to the United States. As a Washington Post headline put it, typically enough: “China accelerates nuclear weapons expansion, seeks 1,000 warheads or more, Pentagon says.”
The media, however, largely ignored a far more significant claim in that same report: that China would be ready to conduct “intelligentized” warfare by 2027, enabling the Chinese to effectively resist any U.S. military response should it decide to invade the island of Taiwan, which they view as a renegade province. To the newsmakers of this moment, that might have seemed like far less of a headline-grabber than those future warheads, but the implications couldn’t be more consequential. Let me, then, offer you a basic translation of that finding: as the Pentagon sees things, be prepared for World War III to break out any time after January 1, 2027.
To appreciate just how terrifying that calculation is, four key questions have to be answered. What does the Pentagon mean by “intelligentized” warfare? Why would it be so significant if China achieved it? Why do U.S. military officials assume that a war over Taiwan could erupt the moment China masters such warfare? And why would such a war over Taiwan almost certainly turn into World War III, with every likelihood of going nuclear?