 On 8 November 2008, Palestinian reconciliation talks due to be held in Cairo were called off after Hamas announced a boycott in protest at the detention of hundreds of its members by president Mahmoud Abbas's security forces.The 2009 Hamas political violence took place in the Gaza Strip during and after the 2008–2009 Israel–Gaza conflict.A series of violent acts, ranging from physical assaults, torture, and executions of Palestinians, suspected of collaboration with the Israel Defense Forces, as well as members of the Fatah political party, occurred.