We still don’t know for sure if there are North Korean troops fighting in Russia against Ukrainian forces. Perhaps we never ...

President Trump’s blueprints to build a space-based missile defense shield could help him push for reductions in atomic weapons arsenals across the great nuclear powers.

TOKYO — The United States has approved a $900 million missile sale to Japan, the third major arms purchase of its kind by the ...

Protecting the U.S. would require novel solutions, like orbiting missile interceptors that can destroy incoming attacks.

The problems, both then and now, were that a comprehensive missile shield would be exorbitant in price, barely technically ...