Russian President Vladimir Putin announced on Feb. 21 he was suspending Russia’s participation in the New Strategic Arms Reduction Treaty (New START). The suspension jeopardizes the existing arms ...

The “Baker” explosion, a nuclear weapon test by the United States military, at Bikini Atoll, Marshall Islands, on July 25, 1946. Credit: U.S. Department of Defense. It is often forgotten that the ...

For more than six decades, the United States has been worried about China’s regional influence, military activities—and its nuclear potential. For instance, in 1958, US officials considered using ...