AFP- France on Thursday vowed a "merciless" campaign to stamp out ETA on its soil after a member of the Basque separatist group was accused of shooting dead a French policeman. "The mobilisation of the French police and gendarmes against this terrorist organisation will be total and merciless," Sarkozy said after meeting the family of the 52-year-old officer who was gunned down on Tuesday. "Let no one imagine that the territory of the French republic is a quiet rear-base for the terrorists and assassins who kill, as ETA has shown it can for decades," he said in Damarie-les-Lys, scene of the shooting southeast of Paris.