AUSTRALIA has taken a “hard line” in its response to the deadly attacks on the French satirical magazine Charlie Hebdo and the kosher supermarket in Paris, President Donald Trump has said.

Key points:Trump said the US would use force against those who carried out the deadly attack at Charlie HebdoThe US is now seeking to target the “core leadership” of ISIS, including those responsible for the Paris attackThe US also said it would target those who “planned, committed, or aided” the attack, which was carried out by two brothers from a wealthy family in the Paris suburb of Saint-Denis, in the latest US action in the Middle East.

The president made the comments in a speech to the nation in which he also addressed the attacks on Paris.

He said: “These cowardly attacks on innocent people have brought the world to its knees.

This is an affront to the humanity of the people of France, and it is an attack on the world.”

He continued: “Our deepest sympathies go out to the families of the victims and their loved ones, to the French people, and to all those who suffered and died in the terrorist attack on this beautiful city.”

The US launched a new cruise missile strike on a Syrian air base last week, a day after an American intelligence official told Fox News that US President Donald Trumps administration was considering launching a cruise missile attack on Syria to stop the use of chemical weapons.

The US has been pushing the president to make good on his threat to attack Syria over its use of sarin gas.

Earlier this month, Mr Trump told reporters in the Oval Office that the US had a “very, very good chance” of hitting Syria before it launched its chemical weapons attack in an attack that left dozens dead.

Mr Trump said at the time: “If you look at Syria, they are the ones who launched the attack.

They have used a chemical, they have used chemical weapons, they had nerve gas.”

In the past week, he has also warned against an attack by the Assad regime on his country.US and Syrian officials are trying to determine who is responsible for last week’s attacks, with reports that the two brothers who carried them out were French citizens.

Mr Trumps officials have said they are investigating the claims.