In this timely and innovative book, Tamar Katriel takes a language and discourse-centred approach to the subject of peace activism in Israel-Palestine, one of the most significant political issues of our time, while also posing more general questions about the role played by language in activist movements – how activists themselves conceptualize their speech and its relationship to action. Viewing activism as a globalized cultural formation that gives shape and meaning to grassroots organizations' struggles for political change, this book explores the relations between the cultural categories of speech and action as constructed and evaluated in activist contexts. It focuses on the specific empirical field of defiant discourse associated with the soldierly role in Israeli culture, using it to offer an in-depth exploration of the cultural underpinnings of defiant speech. Katriel interrogates discourse-centered activism as part of social movements' action repertoires on the one hand, and of the local cultural construction of speech cultures on the other.This is critical reading for all students and scholars studying activism and social movements within linguistics, Middle Eastern studies, peace studies, and communication studies.