The United States and Iran clashed at the United Nations on Monday over Tehran's nuclear program. The confrontation occurred as a month-long conference to review the nuclear Non-Proliferation Treaty, which is meant to prevent the spread of atomic weapons, got underway.
Iran was selected as one of dozens of vice presidents for the conference. The United States responded by stating that Iran’s selection was an affront to the Non-Proliferation Treaty.
The nuclear issue has been at the heart of the war between Iran, the United States, and Israel. U.S. President Donald Trump reiterated that Tehran can never have a nuclear weapon.