As President Trump pushes to end the Russian invasion, two books look at the paramilitary Wagner Group and consider the shape ...

In “Six Minutes to Winter,” Mark Lynas explores the lasting threat and true horror of nuclear weapons.

A deadly disaster, a sunken nuclear sub, and $70 million to bring it back - this is the Kursk salvage mission.

North Korea fired what appeared to be multiple short-range ballistic missiles off its east coast, South Korea’s military said ...