Terrorism, Russia, Ebola, Climate Change and the nuclear ambitions of Iran were just some of the topics the president touched on in a powerful speech at the General Assembly of the United Nations on Wednesday. But it was his words on terrorism and the role of Muslims around the world in denouncing terrorists groups, that shaped the president’s call to action today.

Here is part of the president’s speech highlighting the threat of terrorism and his call on the world to come together to eradicate it.

Of course, terrorism is not new. Speaking before this Assembly, President Kennedy put it well: “Terror is not a new weapon,” he said. “Throughout history it has been used by those who could not prevail, either by persuasion or example.” In the 20th century, terror was used by all manner of groups who failed to come to power through public support. But in this century, we have faced a more lethal and ideological brand of terrorists who have perverted one of the world’s great religions. With access to technology that allows small groups to do great harm, they have embraced a nightmarish vision that would divide the world into adherents and infidels – killing as many innocent civilians as possible; and employing the most brutal methods to intimidate people within their communities.

I have made it clear that America will not base our entire foreign policy on reacting to terrorism. Rather, we have waged a focused campaign against al Qaeda and its associated forces – taking out their leaders, and denying them the safe-havens they rely upon. At the same time, we have reaffirmed that the United States is not and never will be at war with Islam. Islam teaches peace. Muslims the world over aspire to live with dignity and a sense of justice. And when it comes to America and Islam, there is no us and them – there is only us, because millions of Muslim Americans are part of the fabric of our country.

So we reject any suggestion of a clash of civilizations. Belief in permanent religious war is the misguided refuge of extremists who cannot build or create anything, and therefore peddle only fanaticism and hate. And it is no exaggeration to say that humanity’s future depends on us uniting against those who would divide us along fault lines of tribe or sect; race or religion.

This is not simply a matter of words. Collectively, we must take concrete steps to address the danger posed by religiously motivated fanatics, and the trends that fuel their recruitment. Moreover, this campaign against extremism goes beyond a narrow security challenge. For while we have methodically degraded core al Qaeda and supported a transition to a sovereign Afghan government, extremist ideology has shifted to other places – particularly in the Middle East and North Africa, where a quarter of young people have no job; food and water could grow scarce; corruption is rampant; and sectarian conflicts have become increasingly hard to contain.

As an international community, we must meet this challenge with a focus on four areas. First, the terrorist group known as ISIL must be degraded, and ultimately destroyed.

This group has terrorized all who they come across in Iraq and Syria. Mothers, sisters and daughters have been subjected to rape as a weapon of war. Innocent children have been gunned down. Bodies have been dumped in mass graves. Religious minorities have been starved to death. In the most horrific crimes imaginable, innocent human beings have been beheaded, with videos of the atrocity distributed to shock the conscience of the world.

No God condones this terror. No grievance justifies these actions. There can be no reasoning – no negotiation – with this brand of evil. The only language understood by killers like this is the language of force. So the United States of America will work with a broad coalition to dismantle this network of death.

In this effort, we do not act alone. Nor do we intend to send U.S. troops to occupy foreign lands. Instead, we will support Iraqis and Syrians fighting to reclaim their communities. We will use our military might in a campaign of air strikes to roll back ISIL. We will train and equip forces fighting against these terrorists on the ground. We will work to cut off their financing, and to stop the flow of fighters into and out of the region. Already, over 40 nations have offered to join this coalition. Today, I ask the world to join in this effort. Those who have joined ISIL should leave the battlefield while they can. Those who continue to fight for a hateful cause will find they are increasingly alone. For we will not succumb to threats; and we will demonstrate that the future belongs to those who build – not those who destroy.

Second, it is time for the world – especially Muslim communities – to explicitly, forcefully, and consistently reject the ideology of al Qaeda and ISIL.

It is the task of all great religions to accommodate devout faith with a modern, multicultural world. No children – anywhere – should be educated to hate other people. There should be no more tolerance of so-called clerics who call upon people to harm innocents because they are Jewish, Christian or Muslim. It is time for a new compact among the civilized peoples of this world to eradicate war at its most fundamental source: the corruption of young minds by violent ideology.