Nuclear Boomerang

... relations with Russia. The first, and so far only, state to openly denounce the NPT was North Korea in 2003. It conducted six live nuclear tests between 2006 and 2017, demonstrating its nuclear status to the world while developing delivery systems of increasing ... ... American allies about the reliability of U.S. security guarantees. Since the early 1950s, the strategy of so-called extended nuclear deterrence has been rooted in the U.S. commitment to use nuclear weapons in the event of an attack on allies, whether ...