Is this is the first major attack in a Western nation from ISIS?
From the Times of Israel:
Amedy Coulibaly, a gunman killed by police Friday after seizing a Jewish supermarket in Paris, told BFMTV station he had “coordinated” with the Charlie Hebdo killers and was a member of the Islamic State group.
Cherif Kouachi, one of the brothers who carried out the Wednesday magazine massacre before taking a person hostage on Friday, meanwhile told BFMTV they had been financed by al-Qaeda in Yemen. They were also both killed in a police assault.