The United States is quietly rewriting the rules of small arms, betting that a radically different rifle and machine gun will ...

Drone swarms can quickly overwhelm defenses and are difficult to combat effectively, but China's new microwave system could ...

Energy Secretary Chris Wright said the testing ordered up in a surprise announcement by President Trump last week would focus on “the other parts” of nuclear weaponry. By Zolan Kanno-Youngs The ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The First Church of Christ, Scientist, and we’ve always been transparent about that. The church publishes the ...

Michael Horowitz, Richard Perry professor of political science at the University of Pennsylvania and senior fellow for technology and innovation at the Council on Foreign Relations, sits down with ...