The United States is quietly rewriting the rules of small arms, betting that a radically different rifle and machine gun will decide future firefights. Instead of tweaking the familiar M4 and M249, ...

The remarks follow reports this week that members of Maduro's guard team experienced bleeding from a mysterious weapon.

Military history is riddled with weapons systems failing to live up to the reality of the situation on the battlefield. This can be brought about by sudden, rapid advances in contemporary technologies ...