Misawa Airport / Misawa Air Base — Misawa, Japan

Misawa Airport, also known as Misawa Air Base, is a joint-use facility in Aomori Prefecture, Japan, shared by the United States Air Force, the Japan Air Self-Defense Force, and limited civilian operations. MSJ has long served as a strategically important installation in northern Japan, hosting American fighter squadrons as part of the U.S.-Japan security alliance since the Cold War era. Alongside its substantial military role, MSJ accommodates a small number of domestic civilian flights connecting Misawa to Tokyo, making it a rare example of a functioning military-civil dual-use airport in Japan. The base and surrounding area also support a significant American military community, with associated housing, schools, and services. MSJ's dual identity makes it a notable case of coexisting defense and commercial aviation operations.