In the aftermath of the heinous terrorist attack in Nice, France’s Prime Minister Manuel Valls made a jarring comment: “The times have changed, and France is going to have to live with terrorism.”

Prime Minister Valls, upset at the most recent attack on his homeland, undoubtedly feels like most of his countrymen — afraid, frustrated and grief-stricken. Those sentiments are natural but acceptance of terrorism as commonplace — or a hazard of life in 2016 — is egregiously unacceptable.

We cannot and should not “live with terrorism,” in France, in the United States, or anywhere.

Now that terrorist attacks seem like weekly occurrences, there is a tendency to allow ourselves to become numb to the news of new assaults. But we mustn’t become desensitized to these barbaric attacks on humanity because it dulls our resolve and thus our collective commitment to winning the war on terror and eradicating those perpetrating these actions.

Sadness has been the most common response to the long list of recent terrorist attacks but Nice feels different — and it should. Citizens in France and throughout the world should be angry and demand that political leaders act more aggressively and strategically in addressing radicalization and terrorism.

The first and foremost role of any government is the security and protection of its citizenry.

What Valls’ comment underscores is a scary proposition: that Western governments are not well equipped to fully grapple with the asymmetrical war terrorists are waging against the West and its culture.

Even the presumptive Democratic presidential nominee Hillary Clinton acknowledged to Bill O’Reilly on Fox news on Thursday evening that there is not enough cooperation and information sharing between Western nations. And presumptive Republican nominee Donald Trump told Mr. O’Reilly that if he were president he would seek a formal declaration of war from Congress to combat ISIS.

But we should not wait for a new president to do what is necessary now.

President Obama should once again call upon Congress for a formal declaration of war against ISIS. And, much like his admirable hosting of police and civil rights leaders this week to address racial disparity domestically, President Obama should convene a meeting of Western leaders to coordinate efforts to dismantle ISIS globally. And this global coalition should not only wage war on ISIS’ land holdings and leadership, but also engage in the most sophisticated digital warfare to stop these terrorists from spreading their propaganda digitally.

A formal declaration of war and new levels of Western collaboration should serve as a starting point and symbolize that the West is united and committed against this common enemy of radical Islamic terrorism like never before.

The times have certainly changed, but we should not be lulled into accepting that terrorism is here to stay. The war on terror is winnable, but only with renewed commitment and resolve.