Andrei Kelin tells the BBC's Laura Kuenssberg he does not deny accusations of attempting to spy on UK nuclear submarine fleet ...

The Institute for Science and International Security (ISIS) warns that Iran's nuclear program has reached an "extremely dangerous" stage.

Despite claiming to be in great shape after the annual physical examination, the veil of secrecy around the release of the ...

Living parallel lives, they counselled presidents and changed the course of the cold war. How would they steer America today?

Oman's top diplomat, who mediated talks between the United States and Iran in Muscat on Saturday, said they were held in a ...