JERSEY CITY, N.J. — Donald Trump will declare an end to nation building if elected president, replacing it with what aides described as “foreign policy realism” focused on destroying the Islamic State group and other extremist organizations.

In a speech today in Ohio, Trump will argue that the United States needs to work with anyone who shares that mission, regardless of other ideological and strategic disagreements. Any country that wants to work with the U.S. to defeat “radical Islamic terrorism” will be a U.S. ally, he is expected to say.

“Mr. Trump’s speech will explain that while we can’t choose our friends, we must always recognize our enemies,” Trump senior policy adviser Stephen Miller said Sunday.

The candidate is also expected to call in the speech for declaring in explicit terms that, like during the Cold War, the nation is in an ideological conflict with radical Islam.

Trump’s Democratic rival Hillary Clinton and top government officials have warned of the dangers of using that kind of language.