Nuclear

President Donald Trump honored the 13 American service members killed during Operation Epic Fury at his Memorial Day address Monday at Arlington National Cemetery, pledging that Iran will never obtain a nuclear weapon and calling the fallen "wonderful souls, wonderful special people."

The U.S. Air Force launched an unarmed Minuteman III intercontinental ballistic missile from Vandenberg Space Force Base in Southern California early Wednesday morning, firing the weapon into the Pacific Ocean as part of a routine evaluation of the nation's nuclear deterrent.

Russia has launched nuclear exercises with Belarus to prepare for the event of an "aggression threat," state-run news agency TASS reports.

Iran was selected to become one of the 34 vice presidents of the United Nations Nonproliferation Treaty conference, sparking strong criticism from the United States.

A senior Pentagon official has been placed on administrative leave after undercover footage showed him discussing U.S. nuclear launch protocols, chemical weapons research, and U.S. military plans targeting Iran's new supreme leader, all during what he believed were private dinner dates.

The International Atomic Energy Agency (IAEA) warned that there is a possibility of "radiological release" in Iran.

The Trump administration expanded its sanctions against Iran ahead of its nuclear talks with the country.

Iran signaled on Tuesday that progress has been made in its nuclear discussions with the United States.

The United States has secured nuclear agreements with the European nations of Slovakia and Hungary, advancing plans to construct power plants in the countries.

The U.S. Under Secretary of State for Arms Control and International Security, Thomas DiNanno, accused China of conducting secret nuclear tests in violation of international agreements.