Things may be heating up around the Strait of Taiwan as China continues to rattle its saber over the island nation, and now the U.S. has stepped up its presence in the area. Taiwan has now acknowledged that it is hosting U.S. troops on some of its outlying islands, a fact that is sure to infuriate the Chinese who claim Taiwan and all its surrounding islands. The country’s defense minister, Chiu Kuo-cheng, would not offer many details on the U.S. troops, but did note that the presence is among the islands around Kinmen — three miles off the coast of the Chinese coastal city of Xiamen, accordin…