Donald Trump, the U.S. president, in his speech at the United Nations General Assembly, called on world leaders to stand united against the Islamic Republic of Iran.

Trump said that if countries united, the world would soon be rid of the “51-year threat of Iran’s terrorism,” and oil prices would also drop sharply.

He described the Islamic Republic as a “terrorist regime” and said this government does not act out of strength and self-confidence, but out of weakness and desperation.

Trump added: “With courage and resolve, anything is possible; major changes can happen quickly.”