Iranian President Hassan Rouhani sits among senior army staff as he delivers his speech during the annual military parade on September 22, 2017 in Tehran. (AFP Photo)

TEHRAN, Oct. 11 (Xinhua) -- Iranian President Hassan Rouhani warned Wednesday that the United States would be the loser if the U.S. President Donald Trump decides to drop Iran's international nuclear deal.

If they recommit their earlier mistakes, they will face global predicament, Rouhani said in the weekly cabinet meeting, according to local media report.

"We are not afraid" of the U.S. measures, he said, adding that "the international community will learn who is unreliable and (the) liar."

The number of countries that support Washington's hostile stance on the nuclear deal could be counted on the fingers of one hand, Rouhani said.

Meanwhile, other parties involved in the endorsement of the deal do not support U.S. bid to exit the deal, he said.

Rouhani said the signatories that choose to honor their sides of the bargain are in fact protecting their own international reputation, adding that "if any side fails to stand committed to the deal, it would be tarnishing its own reputation," Press TV reported.

The nuclear deal was reached between Iran and the world six powers of Britain, China, France, Russia and the United States plus Germany in July 2015.

The deal, officially known as Joint Comprehensive Plan of Action (JCPOA), has helped defuse the Iran nuclear crisis and bolstered the international non-proliferation regime.

"The JCPOA is a major test for world governments and that remaining committed to it constitutes a basis for confidence-building around the globe," Rouhani was quoted as saying.

"If the ill-wishing side, our rival and enemy, leaves an agreement, this is not a defeat for us, but rather a defeat for the opposite side," he stressed.

President Trump is expected to announce shortly an overall Iran strategy, including whether his administration will decertify Iran's compliance with the landmark Iran nuclear deal reached in 2015.

Trump has long criticized the Iranian nuclear pact. In his speech delivered at the United Nations General Assembly last month, Trump called the agreement "an embarrassment" for the United States.

The Trump administration is due to inform the congress by Oct. 15 whether Tehran is complying with the deal. If it decides Tehran is not, it could open the way for U.S. lawmakers to reimpose sanctions against Iran.

Last month, the International Atomic Energy Agency, a UN nuclear watchdog, said that Iran was playing by the rules set out in the nuclear accord.