As Chinese missile testing in the waters around Taiwan grew increasingly aggressive in 1996, the US sailed two aircraft carrier groups to the island that Beijing claims as its own, and China was forced to back down. It employed a similar response to Hamas' surprise attack on Israel a month ago, dispatching two carrier groups to the eastern Mediterranean in a rapid and massive show of force meant to deter other countries or Iran-backed proxy groups such as Hezbollah from joining the fight. But what is still viable in the Mideast is increasingly less practical with China, which in 1996...