
Japan’s Deputy Prime Minister Taro Aso is 80 years old, and in his 42 years in politics he’s often stumbled into trouble. But when he last week blurted out support for Japan coming to Taiwan’s aid in the case of a Chinese invasion, it may have been less of a gaffe than a deliberate signal—one with enough plausible deniability for the Japanese government to get away with it.
Under its post-World War II constitution, Japan is prohibited from military conflict except for self-defense. But Aso reckoned that an attack on Taiwan, just 70 miles from some small islands under the jurisdiction of Okinawa, could represent an “existential threat” to Japan’s security. The southernmost prefecture is home to more than half of U.S. forces in Japan. “If a major incident happened, it’s safe to say it would be related to a situation threatening the survival [of Japan]. If that is the case, Japan and the U.S. must defend Taiwan together,” Japanese media quoted Aso as saying.