Through a qualitative analysis and broad historical contextualization of personal interviews, this book shows how American Jewish “Millennials” who are not religiously orthodox approach Israel and Zionism as galvanizing solutions to the thinning of American Jewish identity, and (re)root themselves through “Israeliness”—an unselfconscious and largely secular expression of national kinship and solidarity, as well as of personal and communal purpose, that American Judaism scarcely provides.