A War With China Would Be Unlike Anything Americans Faced Before

A major war in the Indo-Pacific is probably more likely now than at any other time since World War II.

The most probable spark is a Chinese invasion of Taiwan. President Xi Jinping of China has said unifying Taiwan with mainland China “must be achieved.” His Communist Party regime has become sufficiently strong — militarily, economically and industrially — to take Taiwan and directly challenge the United States for regional supremacy.

The United States has vital strategic interests at stake. A successful Chinese invasion of Taiwan would punch a hole...