U.S. Military Should Not Be in My Backyard: Conjoint Experiments in Japan

The war in Ukraine has manifested the critical importance of the American alliance network and the swift and effective deployment of necessary military assets. But do citizens of the U.S. allies support the deployment of such advanced, thus controversial, military assets in their countries? To examine this question, we administered two conjoint experiments in Japan, a critical U.S. ally in Asia. The results show the Japanese citizens’ strong Not-In-My-Backyard (NIMBY) sentiment: They value the U.S.-Japan alliance per se but do not want those advanced arms (specifically, Osprey and F-35 fighter jets) to be deployed in their vicinity, particularly when the U.S. military operates them. Our study contributes to the literature on alliance politics and civil-military relations by emphasizing the importance of paying close attention to local public opposition as a potential source of instability in global military alliances.