french president Hollande has declared 'WAR' on ISIS

"Terrorism will not destroy France, because France will destroy it," Hollande said in a rare address to a joint session of Parliament.

The speech came as police scoured France and Belgium in a hunt for suspects in the brutal attacks, which left at least 129 dead, and as Parisians tried to return to school and work in a city scarred by its second major terror attack this year.

Other world powers also responded. Britain stepped up security for Tuesday's soccer match between England and France.

Hollande urged lawmakers to approve a three-month extension of the nation's state of emergency, new laws that would allow authorities to strip the citizenship from French-born terrorists, and provisions making it easier to deport suspected terrorists.

He also proposed adding 5,000 positions to the country's national paramilitary police force and said he would not propose cuts in the nation's defense spending until at least 2019.

He said France would intensify its attacks on ISIS and called for a United Nations Security Council meeting to discuss the worldwide threat posed by the group.

"We are not committed to a war of civilizations, because these assassins don't represent any civilization," Hollande said. "We are in a war against terrorism, jihadism, which threatens the whole world."

ISIS has claimed responsibility for sending teams of attackers armed with Kalashnikov assault rifles and suicide vests to attack targets around Paris on Friday.

At least 129 people died and 352 were wounded in the attacks, which targeted a music hall, sports stadium and other sites in Paris.