November 19, 2015 5:00 AM EST

Hillary Clinton will lay out a plan Thursday to defeat the Islamic State in the Middle East, responding to the terrorist attacks in Paris, Beirut and elsewhere as her Republican rivals take a hard rhetorical line against Islamic radicals.

In a speech at the Council on Foreign Relations, Clinton will discuss a strategy for dismantling the terrorist networks and flows of fighters, weapons and propaganda, as well as firming up defenses in the United States and in allied countries against terrorist threats, a campaign aide said.

Clinton said in the Democratic debate on Saturday United States must work with its allies and countries in the region to defeat ISIS, but that it “cannot be an American fight, although American leadership is essential.”

“And I think what the president has consistently said– which I agree with– is that we will support those who take the fight to ISIS,” she said.

“Turkey and the Gulf nations have got to make up their minds,” Clinton added later. “Are they going to stand with us against this kind of jihadi radicalism or not? And there are many ways of doing it. They can provide forces. They can provide resources. But they need to be absolutely clear about where they stand.”

She has also criticized Republicans this week for calling on the United States to shut its borders to Syrian refugees fleeing violence in the region, saying at a rally in Dallas that doing so would be “undermining who we are as Americans.”

Ohio Gov. John Kasich and South Carolina Sen. Lindsey Graham have said American troops should be sent to combat ISIS, and all the Republican candidates have criticized President Obama since the Friday attacks in Paris for not taking strong enough action against the terrorist group.

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