الجماعة الإسلامية المسلحة
In the brutal 1991-2002 Algerian Civil War between the Algerian Government and various Islamist rebel groups, takfir was known to be declared by the hardline Islamist GIA (Armed Islamic Group of Algeria). Starting in April 1998, a series of massacres in villages or neighborhoods killed tens, and sometimes hundreds, of civilians without disregard to the age and sex of victims. Although the government had infiltrated the insurgents and it is thought by many that security forces as well as Islamists were involved in massacres, the GIA amir, Antar Zouabri claimed credit for two massacres (Rais and Bentalha massacres), calling the killings an "offering to God" and declaring impious the victims and all Algerians who had not joined its ranks. He declared that "except for those who are with us, all others are apostates and deserving of death," Between 100,000 and 200,000 were ultimately killed in the war.