As modern warfare continues to evolve, drones are becoming one of the most important tools on the battlefield. In Ukraine, for instance, new interceptor drones are now being used to destroy incoming attack drones, which is beginning to change the economics of air defense.

TOKYO (AP) -- Japan and Canada signed a strategic agreement Friday aimed at strengthening cooperation in defense, economic and energy security as military strikes on Iran by the United States and Israel fueled concern about international oil supplies.