This article provides an ethnographic account of peace in contemporary Japanese society, focusing on the ongoing political agenda—the revision of Japan’s Constitution. For the Japanese people, pacifism is a culturally embedded concept that has defined their social and political lives during the post-World War II era. It has shaped Japanese individual and group identities, social relations, and practices. This article explores the ways in which peace represents a set of contested identities constructed through politics at the state level as well as through everyday life at the individual level. Peace is not a fixed concept nor can it be defined only by the state or authorities. The dynamic process of identity construction is examined through distinct narratives generated by both pro-revisionists and grassroots anti-revisionists on the Constitution.