Navigational warnings indicate that the United States has scheduled its first test of a nuclear-capable, but unarmed, intercontinental ballistic missile (ICBM) after President Donald Trump ordered the ...

In 1961, the Soviet Union detonated the largest nuclear weapon ever built, a test so powerful it sent shockwaves around the planet and shattered windows hundreds of miles away. This video explains why ...

The post-war international order may be tearing apart at the seams and international law is increasingly looking like a ...

The world passed a nuclear milestone this week. And, perhaps surprisingly given the recent run of saber-rattling from the likes of Russia and the United States, it’s a positive one.

Add Yahoo as a preferred source to see more of our stories on Google. U.S. President Donald Trump with Chinese President Xi Jinping. China's nuclear expansion is on a trajectory to soon rival ...

Senior Russian officials on Nov. 11 said they were still waiting for a White House explanation about what President Donald Trump meant he when said he had instructed the Pentagon to resume nuclear ...