The Japan Institute of International Affairs co-hosted the 28th US-Japan Security Seminar, a track 1.5 event, in online format from February 16 to 18, 2022, in collaboration with the Center for Strategic and International Studies (CSIS) of the United States.

The seminar began with closed-door discussions in which US and Japanese experts and officials discussed strategic directions of the two allies and defense policy issues, followed by an open webinar where the representatives of the two co-sponsors discussed key points that emerged in the closed sessions following a video message from Foreign Minister Hayashi Yoshimasa.