| Written By Gregory Rattray and Seungmin (Helen) Lee | With the issuance of its 2022 National Security Strategy (NSS), Japan recognized cybersecurity as an area of priority concern. The process of implementing the NSS activities provides a unique opportunity for increased US-Japan cyber cooperation. Historically, positive diplomatic declarations of collaboration have occurred along with technical coordination within the computer emergency and response team (CERT) community. Yet, limitations exist in operationalizing the partnership at the national security level.