President-elect Donald Trump laid out a U.S. military policy on Tuesday that would avoid interventions in foreign conflicts and instead focus heavily on defeating the Islamic State militancy.

In the latest stop on a "thank-you" tour of states critical to his Nov. 8 election win, Trump introduced his choice for defense secretary, retired Gen. James Mattis, to a large crowd in Fayetteville, a city near the Fort Bragg military base, which has deployed soldiers to 90 countries around the world.

"We will stop racing to topple foreign regimes that we know nothing about, that we shouldn't be involved with," Trump said. "Instead, our focus must be on defeating terrorism and destroying ISIS, and we will." ISIS is another name for the Islamic State group.