Add Yahoo as a preferred source to see more of our stories on Google. A subsurface atomic test near Yucca Flats, Nev., in March 1955. (U.S. Atomic Energy Commission via AP) (U.S. Atomic Energy ...

In a Defending the Nation column, reporter James Knuckey assesses some of the biggest defence stories including why Labour ...

"We've halted many years ago, but with others doing testing I think it's appropriate to do so," the president told reporters aboard Air Force One. Experts say that the resumption of testing would be a ...

President Trump explained the order by saying other, unnamed nations were testing their own nuclear weapons, even though no country has tested since 2017. By David E. Sanger and William J. Broad David ...

The United States is to resume nuclear weapons testing “immediately”, Donald Trump has announced, raising fears of renewed proliferation between the world’s two biggest stockpiles of atomic weaponry.

It was at an 18th century Georgian manor house outside London that Japanese lawmaker Rui Matsukawa began to have serious doubts about America’s commitment to defending her country. Matsukawa, a former ...

The United Nations rarely moves fast on disarmament. This year, though, it did something unusual. On November 6, the General Assembly’s First Committee, where states debate over questions of ...