In Lebanon, the legislative elections of June 7, 2009 appeared to be an expected event. Organized in a cycle of "cold civil war", they marked the temporary epilogue of violent tensions which, since 2004, had divided the country, until the climax reached in May 2008. They constitute in this respect an analyser of the reconfigurations of the political scene. Lebanese: political (re) alignments, logic of political mobilizations, transformations of a regime subjected to strong internal and international tensions, at the end of this decade 2000 inaugurated by the Israeli withdrawal from South Lebanon, and punctuated by the Syrian withdrawal of 2005 following the assassination of former Prime Minister Rafiq Hariri, or the war of July 2006. The confrontation at the ballot box of candidates, of families and political parties has notably contributed to the consolidation, destabilization or re-appropriation of leaderships, which the contributions to this work have set out to examine in their multiple dimensions. By favouring a long-term perspective and focusing on localized case studies, these chapters examine electoral competition and the panoply of arenas of mobilization in which it was played out: from political families to avant-garde parties. or student movements, through the new post-war parties, the Church, diaspora networks or even the arenas of mobilization of football teams. that the contributions to this work set out to examine in their multiple dimensions. By favouring a long-term perspective and focusing on localized case studies, these chapters examine electoral competition and the panoply of arenas of mobilization in which it was played out: from political families to avant-garde parties. or student movements, through the new post-war parties, the Church, diaspora networks or even the arenas of mobilization of football teams. that the contributions to this work set out to examine in their multiple dimensions. By favouring a long-term perspective and focusing on localized case studies, these chapters examine electoral competition and the panoply of arenas of mobilization in which it was played out: from political families to avant-garde parties. or student movements, through the new post-war parties, the Church, diaspora networks or even the arenas of mobilization of football teams.