There can be nothing good to come from the Paris attacks this week that killed at least 120 French citizens.

However, the response from French President Francois Hollande gives one hope that the civilized world has gained another full-time participant in the world war against terrorism.

Hollande has vowed a “pitiless” response to the coordinated, well-planned attacks at several locations throughout the City of Lights. And from across the English Channel, British Prime Minister David Cameron told the French that “their fight is our fight.”

France brings considerable muscle to this global effort. The country has a significant military force capable of bringing great harm to whomever it engages. Its intelligence network ranks as one of the more sophisticated on the planet.

Meanwhile, the United States has been waging its own brand of warfare against the Islamic State — which has taken “credit,” if you want to call it that — for the horrifying act it committed in Paris.

Air strikes are continuing. President Obama has decided to send in a small cadre of special operations forces to help train the Kurds in their fight against ISIS in Syria. The British continue to provide air support for the air strikes against terror targets. And, yes, the Russians have joined the fight, too — although it remains an open question whether the MiG fighter jets are actually hitting ISIS targets or merely going after rebel forces fighting the brutal regime of Syrian dictator Bashar al-Assad, who remains a sworn enemy of the United States.

What will it take to defeat the Islamic State? Perhaps it will take more acts of brutality by the monstrous organization against more of our allies throughout the world.

We should continue to accept and welcome all the help we can get.