US President Donald Trump has said he had ordered the Pentagon to start nuclear weapons testing on a level with China and Russia, just minutes before opening a high-stakes summit with Chinese leader Xi Jinping.

Any future U.S. test likely would take place in Nevada at the testing sites, but a lot of work likely would need to go into the sites to prepare them given it’s been over 30 years since the l...

This apparently significant change in US policy comes days after the US president denounced Russia for testing a nuclear-powered missile.

The United States has not tested a nuclear weapon in thirty-three years.