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Lt. Col. Ralph Peters (Ret.) praised Nikki Haley on Fox Business Network on Thursday, saying that the U.S. ambassador to the United Nations "may end up as our first female president."

Peters applauded Haley for standing up to criticism from the U.N. over President Trump's decision to recognize Jerusalem as Israel's capital, but he cautioned against making threats "you're not prepared to carry out."

The U.N. General Assembly on Thursday overwhelmingly voted to declare the decision “null and void.”

Before the vote, Haley threatened that the resolution could lead to the U.S. pulling funding from the U.N.

"This vote will make a difference in how Americans look at the U.N. And this vote will be remembered," Haley said, declaring that the U.S. will put its embassy in Jerusalem regardless of the vote.

"I fully support moving our embassy to Jerusalem, and God knows we could use a tougher line at the U.N.," Peters said on "The Intelligence Report."

Despite that, Peters said he would suggest three pieces of advice for Haley and the Trump administration: Pick your fights wisely, pick fights you can win and don't make threats you're not prepared to carry out.

"The threat was ill-advised about cutting funding. We're certainly not going to cut funding to countries like Jordan or even Egypt at a critical time like this," Peters said. "I fully support it emotionally, but you've got to be tactically as well as strategically good. And I think we took a slight misstep. But my heart's behind this."

Earlier this week, Peters declared that Haley is "on track to be our Margaret Thatcher."

Lt. Col. Ralph Peters (Ret.): "@nikkihaley is on track to be our Margaret Thatcher. She's really strong... She's sticking up for truth, justice, and the American way." pic.twitter.com/J2ADep1koT — Fox News (@FoxNews) December 20, 2017

"She's sticking up for truth, justice and the American way," Peters said.

Watch more above.

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