Iran is threatening to retaliate if the United States extends sanctions, arguing that such a move by congressional Republicans would violate the nuclear agreement. 

The U.S. House of Representatives voted last week to re-authorize the Iran Sanctions Act for 10 years, prompting Supreme Leader Ayatollah Khamenei to say Tehran "would definitely react" if the measure is signed into law.

President-elect Donald Trump took a strict stance against the Iran nuclear deal during the campaign, vowing to tear it up if he became commander-in-chief.

Lt. Col. Ralph Peters (Ret.), a Fox News strategic analyst, said this morning that Khamenei's latest threat is another indication that the hardliners in the regime are "used to getting their way."

Peters said the U.S. sanctions would not violate the agreement, since they're separate from the set of sanctions which were eased as part of the international pact.

He called the Iran deal "woefully one-sided" and said President Obama is "clinging to this as the last vestige of his foreign policy legacy, awful though it is."

Peters argued that Obama, seen as "the great peacemaker," is actually steering the country toward a military confrontation with Iran by taking away "peaceful leverage" - like sanctions - from Trump. 

"By closing [those options] off, he leaves President-elect Trump only a military option in a crisis. ... I'm convinced that we and the Iranians, in the next few years, will be shooting at each other. Hopefully only on a small scale," said Peters.

Watch his full analysis above.

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