People walk behind a poster displaying pictures of ETA victims during the inauguration of the exhibition "The Civil Guard, shield of democracy against terrorism" in the Andalusian capital of Seville October 24, 2011. The Basque separatist group ETA said on October 20, 2011 it was ending four decades of armed struggle and called for talks with the Spanish and French authorities on ending Europe's last major guerrilla conflict. REUTERS/Marcelo del Pozo (SPAIN - Tags: POLITICS MILITARY)