More than 170 countries agree to extend the Nuclear Nonproliferation Treaty indefinitely
The Nuclear Nonproliferation Treaty became permanent on May 11, 1995, when more than 170 countries gathered in New York City and agreed by consensus to drop its 25-year expiration date. U.S. analysts had once feared 25 to 30 nuclear states within two decades. Today there are nine — a quieter outcome than the 1960s dared hope for.









