The headlines and debates serve as a backdrop to Geraldo Cadava’s timely book Standing on Common Ground. Standing against conventional readings of this border’s recent history, Cadava’s study accents how from the Second World War through the Cold War the history of the U.S.–Mexico borderlands ‘defied simple claims about the opening or closing of borders.’ …For its recovery of forgotten histories and its insistence on transnational connections, Standing on Common Ground commands the attention of scholars of the Arizona–Sonora region and of all who study borderlands.